Fluoroflex Plus is 100% fluorocarbon and the strongest,thinnest fluorocarbon on the market with incredible strength.

For example: 5 lb for 5x material and is nearly invisible to fish.

Fluoroflex Plus is incredibly supple and ties excellent knots even to nylon tippet. The refractive Index of Fluoroflex Plus (1.42) in water (1.33) compared to nylon(1. 62) makes it almost invisible to fish and with a Density of 1.72 compared to Nylon (1.15) it breaks surface tension more easily and sinks readily.