Prepare for your next catch with the Berkley Vanish Fishing Line. It is made of 100% easy casting fluorocarbon. It sinks underwater with a sensitive and direct profile from rod tip to lure, and the non-absorbing fluorocarbon maintains strength and abrasion resistance. It's designed to be more flexible compared to traditional fluorocarbons. Berkley Vanish Fishing Line Clear, 40 Lbs - Fishing Lines at Academy Sports