{"title":"J:son Micro-Barbed Tungsten Mayfly Nymphs","description":"\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eMaximum Depth, Ultimate Security\u003c\/b\u003e When the fish are feeding deep and the current is strong, you need two things: weight to reach the strike zone and a hook you can trust. The \u003cb data-path-to-node=\"3\" data-index-in-node=\"174\"\u003eJ:son Micro-Barbed Tungsten Series\u003c\/b\u003e combines our world-class anatomical realism with the rapid sink rate of high-density tungsten and the added security of a micro-barbed hook.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eThe Precision of the Micro-Barb\u003c\/b\u003e The micro-barb is the choice for anglers who want that extra insurance during a long fight or when fishing heavy water. It offers a firm hold while being significantly easier to unhook than a standard barb, minimizing stress on the fish.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eRapid Sinking:\u003c\/b\u003e The tungsten body ensures your nymph cuts through the surface tension and heavy current to reach the riverbed where the big fish are holding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eAnatomical Accuracy:\u003c\/b\u003e Despite the added weight, these nymphs maintain the exact silhouette of the natural insect, ensuring the fish doesn't hesitate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eVersatile Performance:\u003c\/b\u003e Ideal for \"European Nymphing\" techniques or as a point fly in a multi-fly rig.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"6\"\u003eThe Three Profiles of Success:\u003c\/h3\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eDigging Nymphs (High Volume):\u003c\/b\u003e Weighted to reach the depths where large \u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"71\"\u003eGreen Drakes\u003c\/b\u003e and other silt-dwelling species reside. Perfect for deep pools and lake drop-offs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eSwimming Nymphs (Balanced Drift):\u003c\/b\u003e Mimics the darting, vulnerable movement of species like the \u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"94\"\u003eClaret Dun\u003c\/b\u003e. The tungsten weight provides a lifelike jigging action when retrieved.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eClinging Nymphs (Streamlined Grip):\u003c\/b\u003e These \"bodybuilders\" (like the \u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"67\"\u003eYellow May Dun\u003c\/b\u003e) live in the fastest water. The tungsten weight keeps them pinned to the bottom, mirroring their natural behavior in high-velocity streams.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eTactical Advice:\u003c\/b\u003e In high-water conditions or cold temperatures, fish are less likely to move far for a meal. Use these tungsten nymphs to put the fly right in front of their noses. A \"dead-drift\" near the bottom is often the key to success.\u003c\/p\u003e","products":[{"product_id":"tungsten-mayfly-nymph-1-light-olive","title":"J:son Tungsten Mayfly Nymph 1 Light Olive #4","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"9,0\"\u003e\u003cb\u003eThe Giant Deep-Sinker – J:son Tungsten Mayfly Nymph 4 Light Olive (Hook #4)\u003c\/b\u003e The \u003cb\u003eTungsten Light Olive Nymph 4\u003c\/b\u003e on a \u003cb\u003esize #4 hook\u003c\/b\u003e is a formidable imitation of the largest mayfly nymphs in our waters. This \"heavyweight\" version is designed for those specific moments when you need a massive profile and maximum sink rate to reach trophy fish in the deepest, fastest sections of the river. The \u003cb\u003eintegrated tungsten weight\u003c\/b\u003e is concentrated to pull this large fly down quickly, cutting through the most turbulent currents to find the big trout holding in the shadows.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9,1\"\u003eThis light olive version provides a natural, translucent look that is particularly effective for mimicking the large, pale-toned digging nymphs found in many river systems. Despite the substantial \u003cb\u003esize #4 hook\u003c\/b\u003e, the fly maintains J:son’s legendary anatomical realism—featuring a large, segmented body and robust, lifelike legs that provide a massive presence in the water. This is the ultimate \"anchor fly\" for heavy nymph rigs or a standalone choice when you are hunting the biggest fish in deep pools and fast runs where only a fly of this magnitude will get the job done.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668777107777,"sku":"5700005011","price":42.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0002910_tungsten-mayfly-nymph-1-light-olive.png?v=1666753769"},{"product_id":"tungsten-mayfly-nymph-2-light-olive","title":"J:son Tungsten Mayfly Nymph 2 Light Olive #6","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe Deep-Water Titan – J:son Tungsten Mayfly Nymph 2 Light Olive (Hook #6)\u003c\/b\u003e The \u003cb\u003eTungsten Light Olive Nymph 2 in size #6\u003c\/b\u003e is a large and powerful imitation, specifically crafted to match the largest species of swimming and digging mayfly nymphs. Equipped with \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e, this fly is designed to descend rapidly through the water column, making it the perfect tool for dredging deep pools and heavy currents where trophy fish hold tight to the bottom.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eThe light olive coloration provides a natural, semi-translucent appearance that is exceptionally effective in clear water or during bright conditions. Tied on a \u003cb\u003esturdy size #6 hook\u003c\/b\u003e, it offers a significant profile for targeting large trout and grayling. J:son’s hallmark anatomical precision ensures that the fly maintains its realistic silhouette—complete with a segmented body and lifelike legs—even when subjected to high-pressure flows. Fish it on a dead-drift or with a slow, bottom-hugging retrieve to mimic a massive nymph moving through the current.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668777140545,"sku":"5700005012","price":42.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0002911_tungsten-mayfly-nymph-2-light-olive.png?v=1666753776"},{"product_id":"tungsten-mayfly-nymph-3-black","title":"J:son Tungsten Mayfly Nymph 3 Black #12","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe High-Contrast Sinker – J:son Tungsten Mayfly Nymph 3 Black (Hook #12)\u003c\/b\u003e The \u003cb\u003eTungsten Black Nymph 3 in size #12\u003c\/b\u003e is a specialized tool designed for maximum visibility and a fast sink rate. In the underwater world, a black silhouette often provides the sharpest contrast against a bright sky or a sandy riverbed, making this an exceptionally effective pattern in both very clear and slightly peat-stained waters.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eTied on a \u003cb\u003eprecision size #12 hook\u003c\/b\u003e, this model features \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e that allows it to bypass the surface film and reach the strike zone instantly. It is a perfect match for the larger, darker swimming nymphs found in many cold-water streams. J:son’s hallmark anatomical realism—featuring a segmented body and lifelike legs—ensures that the fly maintains a convincing profile even in turbulent currents. This is an essential \"anchor fly\" for technical nymphing or a standalone choice when you need a medium-sized, realistic profile that gets down deep where the big fish are feeding.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668778615105,"sku":"5700005013","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0002918_tungsten-mayfly-nymph-3-black.png?v=1666753783"},{"product_id":"tungsten-mayfly-nymph-4-black","title":"J:son Tungsten Mayfly Nymph 4 Black #14","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"9,0\"\u003e\u003cb\u003eThe High-Contrast Micro Sinker – J:son Tungsten Mayfly Nymph 4 Black (Hook #14)\u003c\/b\u003e The \u003cb\u003eTungsten Black Nymph 4\u003c\/b\u003e in \u003cb\u003esize #14\u003c\/b\u003e is a specialized tool designed for maximum visibility in a small profile. A black silhouette offers the sharpest possible contrast underwater, making this fly stand out against a bright sky or a light-colored riverbed. This is especially effective in very clear water or, conversely, in peat-stained \"tea-colored\" streams where darker profiles are easier for fish to track.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9,1\"\u003eDespite its small size, this nymph features \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e to ensure it breaks the surface tension and reaches the bottom quickly. It is an ideal match for the darker swimming nymphs of the \u003cb\u003e\u003ci\u003eBaetidae\u003c\/i\u003e\u003c\/b\u003e family. J:son’s hallmark anatomical realism is preserved through a segmented body and lifelike legs that remain stable even in turbulent currents. This is a must-have pattern for technical nymphing when you need a small but heavy fly that provides a clear, unmistakable target for feeding trout and grayling.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668778647873,"sku":"5700005014","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0002928_tungsten-mayfly-nymph-4-black.png?v=1666753789"},{"product_id":"tungsten-mayfly-nymph-5-black","title":"J:son Tungsten Mayfly Nymph 5 Black #18","description":"\u003cp\u003eAs mayfly nymphs spend most of their time close to the bottom and only moves longer distances by swimming or drifting downstream when they seek food, accidently loose their grip or when they are about to hatch, it is a vise choice to fish an imitation close to the bottom when you can’t see any mayflies hatch. The nymphs are active all year a round and are of interest for the angler from spring to autumn. This fly is weighted with tungsten.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668778680641,"sku":"5700005015","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003561_tungsten-mayfly-nymph-5-black.png?v=1666753796"},{"product_id":"tungsten-mayfly-nymph-3-sulphur","title":"J:son Tungsten Mayfly Nymph 3 Sulphur #12","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"4,0\"\u003e\u003cb\u003eThe Versatile Swimmer – J:son Mayfly Nymph 1 Light Olive (Hook #4)\u003c\/b\u003e The \u003cb\u003eLight Olive Nymph 1\u003c\/b\u003e is a premier imitation of a swimming mayfly nymph, designed to mimic larger species in their active stage. Despite being tied on a \u003cb\u003esturdy size #4 hook\u003c\/b\u003e for maximum hooking power, the fly maintains a slender and realistic profile thanks to J:son’s innovative body construction. These nymphs are agile swimmers and frequent drifters, making them a primary target for trout in both rivers and still waters. The light olive coloration is particularly effective in clear water and during the late spring and summer months when olive-colored hatches are most prevalent.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4,1\"\u003eThis imitation features a segmented, realistic foam-based body and anatomically correct legs that create subtle vibrations in the water, mimicking a living insect. Its balanced weight allows it to sink at a natural rate, making it perfect for dead-drifting through riffles or fishing with a slow, pulsating retrieve in calmer sections. Whether fished near the bottom or higher in the water column just before a hatch, the Light Olive Nymph 1 on a #4 hook provides the perfect combination of anatomical realism and reliable strength.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe Deep-Sinking Sulphur – J:son Tungsten Mayfly Nymph 3 Sulphur (Hook #12)\u003c\/b\u003e The \u003cb\u003eTungsten Sulphur Nymph 3 in size #12\u003c\/b\u003e is a specialized heavy-weight imitation designed for matching larger species within the \u003cb\u003e\u003ci\u003eEphemerellidae\u003c\/i\u003e\u003c\/b\u003e family. While many sulphur patterns are designed for the surface, this model is built with \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e to reach fish that are feeding on active nymphs deep in the water column before the hatch begins.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eThe pale yellow-olive and amber tones of the Sulphur series are exceptionally effective in clear water and on bright days, providing a realistic, translucent silhouette. Tied on a \u003cb\u003eprecision size #12 hook\u003c\/b\u003e, this nymph combines significant weight with J:son’s signature anatomical realism—featuring a segmented body and lifelike legs. It is an ideal choice for fast-moving riffles and deep runs where you need a bright, visible, and heavy profile to trigger a strike from trout and grayling holding near the bottom.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668779139393,"sku":"5700005043","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0002920_tungsten-mayfly-nymph-3-sulphur.png?v=1666753801"},{"product_id":"tungsten-mayfly-nymph-4-sulphur","title":"J:son Tungsten Mayfly Nymph 4 Sulphur #14","description":"\u003cp\u003eAs mayfly nymphs spend most of their time close to the bottom and only moves longer distances by swimming or drifting downstream when they seek food, accidently loose their grip or when they are about to hatch, it is a vise choice to fish an imitation close to the bottom when you can’t see any mayflies hatch. The nymphs are active all year a round and are of interest for the angler from spring to autumn. This fly is weighted with tungsten.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668779630913,"sku":"5700005034","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0002921_tungsten-mayfly-nymph-4-sulphur.png?v=1666753810"},{"product_id":"tungsten-mayfly-nymph-5-sulphur","title":"J:son Tungsten Mayfly Nymph 5 Sulphur #18","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe Micro Sulphur Sinker – J:son Tungsten Mayfly Nymph 5 Sulphur (Hook #18)\u003c\/b\u003e The \u003cb\u003eTungsten Sulphur Nymph 5 in size #18\u003c\/b\u003e is a specialized technical fly designed to mimic the smallest nymphs of the \u003ci\u003eEphemerellidae\u003c\/i\u003e family. At this miniature scale, the pale yellow-olive and amber tones of the Sulphur series provide a realistic, translucent appearance that is highly effective in clear water and under bright skies.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eTied on a \u003cb\u003eprecision size #18 hook\u003c\/b\u003e, this micro-nymph is equipped with \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e. This allows the fly to break the surface tension and reach the feeding zone near the bottom instantly—an essential feature for such a small profile that would otherwise drift too high in the water column. Despite its tiny size, J:son’s hallmark anatomical realism is preserved, featuring a segmented body and lifelike legs. This is the perfect choice for technical \"match-the-hatch\" scenarios where trout and grayling are keyed in on small, active sulphur nymphs deep in the water before the hatch begins.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668779663681,"sku":"5700005045","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003563_tungsten-mayfly-nymph-5-sulphur.png?v=1666753816"},{"product_id":"tungsten-mayfly-nymph-4-grey-beige","title":"J:son Tungsten Mayfly Nymph 4  Grey Beige #14","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"8,0\"\u003e\u003cb\u003eThe Technical Micro-Sinker – J:son Tungsten Mayfly Nymph (Hook #14)\u003c\/b\u003e The \u003cb\u003eTungsten Nymph in size #14\u003c\/b\u003e is the ultimate technical tool for challenging conditions. When fish are keyed in on tiny hatches or \"micro-nymphs,\" standard flies often lack the weight to reach the bottom, while bulky bead-heads ruin the delicate profile. Our #18 model solves this with \u003cb\u003ediscreetly integrated tungsten weighting\u003c\/b\u003e, allowing this tiny imitation to sink quickly while maintaining its incredibly slim and realistic silhouette.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8,1\"\u003eThis micro-nymph is a perfect match for the smallest species of the \u003cb\u003e\u003ci\u003eBaetidae\u003c\/i\u003e\u003c\/b\u003e family (Blue-Winged Olives) or early-stage nymphs of larger species. Despite its miniature size, it features J:son’s legendary anatomical precision, including a segmented body and delicate, lifelike legs. It is a \"must-have\" for clear-water stalking, slow-moving spring creeks, or as a dropper fly when fish are being extremely selective. When a #14 or #16 is simply too large, this #18 tungsten nymph provides the perfect combination of stealth and depth.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668783595841,"sku":"5700000564","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003666_tungsten-mayfly-nymph-4-grey-beige.png?v=1666753970"},{"product_id":"tungsten-mayfly-nymph-5-grey-beige","title":"J:son Tungsten Mayfly Nymph 5 Grey Beige #18","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe Subtle Micro-Sinker – J:son Tungsten Mayfly Nymph 5 Grey-Beige (Hook #18)\u003c\/b\u003e The \u003cb\u003eTungsten Grey-Beige Nymph 5 in size #18\u003c\/b\u003e is a technical masterpiece designed for matching the smallest mayfly species in the river. This tiny imitation is tied on a precision \u003cb\u003esize #18 hook\u003c\/b\u003e and features a muted, natural grey-beige tone that perfectly mimics the pale camouflage of micro-nymphs found in gravelly or sandy riverbeds.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eDespite its miniature profile, the fly is equipped with \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e. This allows it to bypass surface tension and sink rapidly into the strike zone—a critical advantage when fishing small flies in moving water where they otherwise tend to stay too high in the water column. J:son’s legendary anatomical realism is fully present even at this small scale, with a delicately segmented body and lifelike legs that provide a convincing profile. This is an essential pattern for clear-water stalking, technical spring creeks, or as a dropper fly when fish are keyed in on the smallest forage available.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668783628609,"sku":"5700000565","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003667_tungsten-mayfly-nymph-5-grey-beige.png?v=1666753977"},{"product_id":"tungsten-mayfly-nymph-2-olive-brown","title":"J:son Tungsten Mayfly Nymph 2 Olive Brown #6","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"8,0\"\u003e\u003cb\u003eThe Heavyweight Favorite – J:son Tungsten Mayfly Nymph 2 Olive Brown (Hook #6)\u003c\/b\u003e The \u003cb\u003eTungsten Olive Brown Nymph 2 in size #6\u003c\/b\u003e is a large and heavy imitation of the most significant species of swimming and digging mayfly nymphs. Equipped with \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e, this fly is engineered to rapidly penetrate the water column and reach the feeding zones near the bottom, even in the deepest pools and most turbulent currents.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8,1\"\u003eOlive Brown is a universal color that mimics the natural hues of nymphs in nearly all types of water, making it an indispensable pattern for your fly box. The robust \u003cb\u003esize #6 hook\u003c\/b\u003e provides the weight and substantial profile required to attract trophy fish. J:son’s anatomical realism—featuring a segmented body and lifelike legs—creates a perfect \"footprint\" in the water, fooling even the most experienced trout or grayling. This is the obvious choice for \"heavy nymphing\" when you need to get deep and present a large, realistic mouthful.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668787855681,"sku":"5700005022","price":42.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003564_tungsten-mayfly-nymph-2-olive-brown.png?v=1666754085"},{"product_id":"tungsten-mayfly-nymph-4-olive-brown","title":"J:son Tungsten Mayfly Nymph 4 Olive Brown #14","description":"\u003cp\u003eAs mayfly nymphs spend most of their time close to the bottom and only moves longer distances by swimming or drifting downstream when they seek food, accidently loose their grip or when they are about to hatch, it is a vise choice to fish an imitation close to the bottom when you can’t see any mayflies hatch. The nymphs are active all year a round and are of interest for the angler from spring to autumn. This fly is weighted with tungsten.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668803453249,"sku":"5700005044","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003565_tungsten-mayfly-nymph-4-olive-brown.png?v=1666754764"},{"product_id":"tungsten-mayfly-nymph-5-olive-brown","title":"J:son Tungsten Mayfly Nymph 5 Olive Brown #18","description":"\u003cp\u003eAs mayfly nymphs spend most of their time close to the bottom and only moves longer distances by swimming or drifting downstream when they seek food, accidently loose their grip or when they are about to hatch, it is a vise choice to fish an imitation close to the bottom when you can’t see any mayflies hatch. The nymphs are active all year a round and are of interest for the angler from spring to autumn. This fly is weighted with tungsten.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668803486017,"sku":"5700005035","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/products\/0003562_tungsten-mayfly-nymph-5-olive-brown.png?v=1666754770"},{"product_id":"tungsten-mayfly-nymph-3-olive-brown","title":"J:son Tungsten Mayfly Nymph 3 Olive Brown #12","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe All-Water Heavyweight – J:son Tungsten Mayfly Nymph 3 Olive Brown (Hook #12)\u003c\/b\u003e The \u003cb\u003eTungsten Olive Brown Nymph 3 in size #12\u003c\/b\u003e is one of our most versatile and effective weighted patterns. This size and color combination is a universal match for a vast array of mid-to-large swimming nymphs found in rivers and streams globally. Featuring \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e, this fly is designed to cut through fast water and reach the bottom quickly, placing your fly exactly where the fish are holding.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eThe olive brown tone is arguably the most consistent color for nymph fishing, blending perfectly with the natural camouflage of real insects in almost any environment. Tied on a \u003cb\u003eprecision size #12 hook\u003c\/b\u003e, the fly maintains J:son’s signature anatomical realism with a segmented body and lifelike legs that remain stable and attractive even in heavy currents. This is an essential pattern for any angler needing a realistic, medium-sized profile with the weight necessary for deep pools, fast riffles, and technical nymphing rigs.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668810727745,"sku":"5700005033","price":39.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/files\/0000522_dagslanda-nymf-tungsten-3-olive-brown.png?v=1773085317"},{"product_id":"tungsten-mayfly-nymph-1-olive-brown","title":"J:son Tungsten Mayfly Nymph 1 Olive Brown #4","description":"\u003ch3 data-path-to-node=\"3\"\u003e\u003cb\u003eMayfly Nymphs – Life Below the Surface\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eMayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: \u003cb\u003eDigging, Swimming, and Clinging nymphs\u003c\/b\u003e, each adapted to specific environments.\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb\u003eDigging Nymphs:\u003c\/b\u003e Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the \u003ci\u003eGreen Drake (Ephemera danica)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb\u003eSwimming Nymphs:\u003c\/b\u003e Agile and active, these are found in both still and moving water. They are often drift-feeders, like the \u003ci\u003eClaret Dun (Leptophlebia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb\u003eClinging Nymphs:\u003c\/b\u003e The \"bodybuilders\" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the \u003ci\u003eYellow May Dun (Heptagenia)\u003c\/i\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb\u003eOur Commitment: Anatomical Accuracy \u0026amp; Performance\u003c\/b\u003e Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eOur commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight. \u003c\/p\u003e\n\u003cp data-path-to-node=\"7,0\"\u003e\u003cb\u003eThe Heavyweight All-Rounder – J:son Tungsten Mayfly Nymph 1 Olive Brown (Hook #4)\u003c\/b\u003e The \u003cb\u003eTungsten Olive Brown Nymph 1\u003c\/b\u003e in the impressive \u003cb\u003esize #4\u003c\/b\u003e is a powerful imitation of the largest species of swimming and digging mayfly nymphs. With its \u003cb\u003eintegrated tungsten weighting\u003c\/b\u003e, this is one of our fastest-sinking flies, designed to punch through surface tension and reach the riverbed in deep pools and heavy currents where the largest fish hold.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,1\"\u003eThe olive brown coloration is a universal favorite, mimicking the natural camouflage of nymphs in almost any freshwater environment. Despite the substantial \u003cb\u003esize #4 hook\u003c\/b\u003e, the fly maintains J:son’s uncompromising anatomical realism, featuring a clearly segmented body and robust, lifelike legs that provide a vivid profile even in turbulent water. This is the ultimate fly for targeting trophy trout and large grayling when you need maximum visibility, weight, and realism in a single pattern. Use it as a stable \"anchor fly\" in a rig or fish it alone along the bottom to entice the truly big specimens.\u003c\/p\u003e","brand":"jsonsweden.com","offers":[{"title":"Default Title","offer_id":43668812824897,"sku":"5700005021","price":42.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5155\/7953\/files\/0000517_dagslanda-nymf-1-olive-brown-tungsten-_4.png?v=1770826821"}],"url":"https:\/\/jsonsweden.com\/en-gb\/collections\/j-son-barbless-tungsten-mayfly-nymphs-kopia.oembed","provider":"jsonsweden.com","version":"1.0","type":"link"}