A 100% fluorocarbon leader manufactured in Japan using Yo-Zuri exclusive extrusion process. Topknot 100% fluorocarbon leader is invisible to fish resulting in more strikes and more fish in the boat. Built to be incredibly abrasion resistant making it well suited for fishing in and around heavy structure. Topknot leader 100yd is available in natural clear and Disappearing Pink and 20-80lb test to cover a variety of fishing conditions.