EuroFlyAngler - Borealis dun fly fishing

Target fish: trout / grayling


Hook: 14 - 16
Mounting thread: olive

Body: natural rafia
Tails: 2 flashy fibers
Wings, Thorax, legs: braid of deer hair and grizzly hackles fibers
Notes: I started using this fly during the olive mayfly hatches in the arctic. Nonetheless, it has proven a reliable pattern at any latitude