The RIO Powerflex Tippet is a high knot strength copolymer nylon tippet that features superb knot strength, stretch, and suppleness to make this an excellent nylon tippet material for almost all trout fly fishing needs. The Powerflex features a light grey color to enhance camouflage ability on the water.FeaturesMade from a supple, high knot strength copolymer Light grey color enhances its camouflage ability on the waterIdeal for trout