VARIVAS Super Trout Advance Big Trout, Nylon line is highly durable and flexible. Featuring VARIVAS VA-G high density molecular binding process, resulting in improved breaking strain/diameter ratio compared to other similar diameter line. VARIVAS SP-F fluoride-based line coating reduces guide friction, maximizing casting distance. While VARIVAS proprietary SP-T (super tough) coating increases durability and flexibility. Made in Japan.