Prepare for you next catch with the Berkley Vanish Fishing Line. It is made of 100% easy casting fluorocarbon. The line remains clear underwater, refracting light similar to water, and it sinks with a sensitive and direct profile from rod tip to lure. The line is designed to be more flexible compared to traditional fluorocarbon. Berkley Vanish Fishing Line Clear, 20 Lbs - Fishing Lines at Academy Sports