Remains clear underwater. 100% fluorocarbon refracts light. Non-absorbing fluorocarbon.

Additional Information
Remains clear underwater - 100% fluorocarbon refracts light similar to water. Sinks underwater - more sensitive and a more direct profile from rod tip to lure. Superior Wet Strength - Non-absorbing fluorocarbon maintains strength and abrasion resistance underwater. Flexible - Most fluorocarbons are stiff, Vanish is more flexible.