What it is
Hareline Mayfly Tails is a dedicated tailing material made from synthetic fibers for mayfly-style dry flies. The fibers come with a natural taper and they’re very stiff, so they support the back of the fly instead of collapsing. Because they don’t absorb water, they help a dry fly stay riding high and dry.
What to tie with it
Use it for dry-fly tails, especially when you want a clean mayfly silhouette and a tail that stays splayed instead of fouling around the bend. It’s a good fit for split-tail methods on parachutes and thorax-style mayflies, where stiffness and low water uptake keep the fly tracking right. Tie it in as you would other tailing fibers, then trim to length once you’ve got the taper lined up.
Flies and the fish they're for
Parachute Adams is a natural match for this material, since the stiff, tapered fibers make a crisp mayfly tail and help the fly keep floating through rougher water. Fish that pattern as a general mayfly/dry-fly imitation for trout on rivers and tailwaters, and also on stillwaters when fish are keying on small mayflies. The same tailing job carries over to other mayfly-style dry presentations like parachute and comparadun-style mayflies, where trout are feeding in the surface film.
How it compares
Compared to natural feather options like Whiting Coq De Leon Mayfly Tailing Pack (Coq De Leon), this gives you a synthetic, non-absorbent tail that stays stiff and dry. Coq De Leon is the natural feather route and is typically more expensive.
