Monofilament Line by Berkley. From your rod and lure right down to your line, use the right gear to get the job done and maximize every day out on the water. Berkley FluoroShieldTM offers a winning combination of toughness and versatility. The co-polymer core boosts the abrasion resistance and tensile strength to outpace conventional options while the fluorocarbon coating makes the line nearly invisible underwater for flawless presentations that won't spook wary species. At Berkley, our process gives anglers the tools and confidence to catch more fish. Failing to catch fish is what motivates us to keep fishing, keep studying, and keep figuring out ways to make all our products the best on the market. Now you catch the fish.