Size: 7 mm / approx 1/4 in Hook: J:son SS.DF #24
J:son's realistic imitations of mayflies size #5 are the smallest that we have. Great patterns for picky and selective trout all around the world and have proven to be one of the most effective type of patterns in both the States and in Europe.
We do recommend you to use a J:son Swivel for all your fly fishing and all your flies. However, it is necessary to use a J:son Swivel whenever you are fishing a J:son fly in size 1 or 2.
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