RIO&';S BIG NASTY LEADERS are designed to cast large, heavy or air resistant flies. The leaders are made of a medium stiff nylon and have a powerful taper design that easily turn over streamers, big terrestrials (like hoppers and stoneflies), and cope with tough winds. The copolymer material is incredibly tough and highly abrasion resistant. IDEAL FOR: Streamers Terrestrials Bass Bugs Windy Conditions MEDIUM-STIFF MATERIAL FOR TURNING OVER LARGER FLIES POWERFUL BUTT SECTION AND TAPER FOR AUTHORITATIVE TURNOVER HAND TIED PERFECTION LOOP IN THE BUTT FOR QUICK RIGGING