Proprietary Gel Phase Technology process produces the ultimate handling, performance and clarity essential to the most discriminating anglers. Maximization of the fluoropolymers through precision processing creates an easy handling, super-sensitive and abrasion resistant fluorocarbon. Sufix 679-025C Advance Fluorocarbon 100% Fluorocarbon, 25Lb Test, .018"G2 Precision Winding, Gel Phase Technology, 200yd, Clear