Description
Master the Surface Action
Adult caddis flies are a cornerstone of fly fishing, found in both still and moving water across the globe. They are most commonly seen on the surface during two critical moments: when they first hatch and when the females return to lay their eggs.
Unlike mayflies that often float passively, adult caddis are known for their frantic movement. When hatching or depositing eggs, they skitter across the water with impressive speed, creating a V-shaped wake that looks like a small racing boat. This "skating" motion often triggers explosive, aggressive rises from trout and grayling. While a newly hatched caddis is a tempting target, an egg-laying female—often carrying a visible egg sac—is a high-protein prize that large fish will move great distances to intercept.
How to fish the J:son Adult Caddis:
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Dead Drift: Cast upstream and let the fly float naturally over rising fish.
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The "Skating" Technique: Cast across or slightly downstream and use the rod tip to make the fly twitch or "skitter" across the surface to trigger an attack.
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The Lift: Just before the end of the drift, let the current tension lift the fly off the water, imitating a caddis taking flight.
The Global Standard – The J:son Caddis Adult 3 in Cinnamon Brown is a highly effective dry fly with a 17 mm profile, tied on a size #18 hook. The warm "Cinnamon" tone is a legendary color in fly fishing, providing a natural and organic appearance that matches a vast majority of caddis species worldwide. This specific size is perfect for technical fishing when trout and grayling are focusing on smaller insects but still require a realistic silhouette to be fooled.
Like all J:son dry flies, this pattern is built for peak performance. It features innovative air-filled wings and a flexible foam body, making it virtually unsinkable even in faster currents. This superior buoyancy allows you to fish the fly with active movement—mimicking the "racing boat" effect of a natural caddis—without the risk of the fly drowning. For any angler facing a hatch of medium-to-small brown sedges, the 17 mm Cinnamon Brown Caddis is an essential tool for consistent results.