Meet the ideal all-around freshwater material. The wet knot strength of SuperStrong is higher than any other nylon material, meaning when that big brown chomps on your hopper, you can finish the fight without fear of breakage. With a perfectly balanced blend of elasticity, knot strength, and suppleness, SuperStrong is versatile and adaptable. Fly fishing tippets available in sizes: 8X, 7X, 6X, 5X, 4X, 3X, 2X, 1X, 0X, 20lb, 25lb, 35lb, 40lb, 50lb, 60lb, and 65lb. Imported.