Ultra strong, supple, 100% fluorocarbon with high knot strength.
Nearly invisible to fish, the Fluoroflex Plus Tippet is ultra strong, incredible supple and ties excellent knots, even to nylon tippet and leaders. Made from the thinnest fluorocarbon on the market, the Fluoroflex Plus' strength makes for great trout material.
I got through spools of this every summer. The 3X is unbelievably strong.