Built to FIPS Mouche standards, but designed to simply catch fish, the Mastery Competition Nymph line is as simple as it gets: 80 feet of level line. It doesn’t matter if you’re in an international competition, or just trying to outdo yourself, the Euro Tactical Nymph Mono line will perform, fish after fish. Specifically designed for European-style nymphing, if you’re looking for the thinnest, most sensitive line available, look no further.