Description
Stoneflies: The All-Season Fly for Serious Anglers
Found in clean, moving waters all over the world, the stonefly is a cornerstone of a trout's diet. No matter where you're casting a line—from the freestone rivers of the American West to the pristine streams of Scandinavia or New Zealand—these insects are a constant and reliable food source.
Often called the "year-round fly," stoneflies are active throughout all four seasons. This makes them a critical food source for fish, especially when other hatches are scarce. Their presence is a sign of a healthy, clean ecosystem, and their importance to an angler cannot be overstated. Because they provide a high-calorie meal that fish of all sizes actively seek out, a realistic stonefly imitation is one of the most effective and versatile tools in your fly box.
J:son Stonefly Adult 2 Gold (#12)
The High-Visibility Mid-Size – Isoperla & Golden Stone Specialist The J:son Stonefly Adult 2 Gold in size #12 is a brilliant 26 mm dry fly. This "Golden" version (rich amber/yellow) is the perfect mid-sized imitation for the many yellow and golden stonefly species that hatch during the summer months. Its bright profile makes it exceptionally easy to track in fast currents while providing an irresistible, glowing silhouette to fish looking up from the depths.
Why this fly delivers:
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Superior Visibility: The golden-yellow hue is an angler's favorite for technical water. It stands out clearly in white-water riffles, foam lines, and under the shade of overhanging trees, allowing for perfect drift control.
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Advanced Foam Buoyancy: Built with J:son’s proprietary foam-body technology, this 26 mm fly is virtually unsinkable. It rides high in the surface film, ensuring it stays visible and effective even in turbulent pocket water.
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Realistic Surface Imprint: The anatomically correct wings and flexible legs create a life-like footprint. To a fish, the light refraction through the wings is a key trigger that distinguishes a real insect from a clump of debris.
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Indestructible Realism: Unlike traditional flies made of feathers that become matted after a single fish, J:son’s materials are incredibly durable. This fly maintains its shape and high-floating properties through multiple aggressive strikes.
Pro Tip: This size and color are deadly during the "Yellow Sally" hatches. Because it is highly buoyant and 26 mm long, it is a fantastic lead fly for a "Dry-Dropper" setup. Hang a small nymph about 40–60 cm below it; the Gold Adult will act as both a high-attractor dry fly and a reliable strike indicator.