The 2017 Scierra Tippet Material has been developed from the idea of an optimal mix of strength, visibility and stiffness. The knot strengths of the different nylon diameters are extraordinary and we have worked hard to find the perfect balance of diameter and stiffness. Made from Japanes copolymer materials Optimal knot strength We have used different degrees of stiffnesses for different diameters, the thinnest diameters require stiffer materials to avoid memory when fishing with voluminous dry flies Spooled on a click together dispenser