J:son Mayfly Dun 3 Sulphur #18 anatomical fly wings or submerged vegetation

or submerged vegetation

it strikes the perfect balance between visibility and a delicate profile

Our S-series is available in five sizes

This fly is built to withstand repeated strikes and the rigors of technical stream fishing without losing its shape or buoyancy

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

J:son Mayfly Dun 3 Sulphur #18 anatomical fly wings or submerged vegetationThe Mayfly Dun: The Moment of Truth (The Crucial Stage) The stage of the newly hatched adult Mayfly is called the Dun. This is arguably the most critical phase for the fly angler. Depending on surrounding circumstances such as temperature, wind, and weather, the time it takes before the Dun is able to fly away from the surface will vary. These newly hatched Mayflies are often an easy and vulnerable target for the fish, and many will end up in Mr.