Berkley Trilene Fluorocarbon 25lb 200yd Clear TLFFS25-15 Choice of the pros for nearly 10 years! Trilene 100% Fluorocarbon is the "XT" of professional-grade fluorocarbons. This proven formula provides incredible shock strength, abrasion resistance and knot strength. Fast- sinking with greater line density for high sensitivity and less "bow" in the water - all advantages for feeling the bite, setting the hook, and landing more fish! THE CHOICE OF THE PROS! - A FLUOROCARBON GOOD ENOUGH TO BE CALLED TRILENE. Ultimate Invisibility - Similar refractive index to water so fish can't see it. Ultimate impact strength - Proprietary 100% PVDF formula specially processed for the ultimate in impact strength. Excellent Manageability - Lower memory for superior casting.