Seaguar Fluoro Premier is Seaguar's most advanced fluorocarbon formulation ever and boasts 42% more knot strength than leading fluorocarbon competitors. Developed with Seaguar's exclusive, proprietary Double Structure Technology, Seaguar Fluoro Premier Leader is leading the market in innovation. Fluoro Premier has smaller diameters and increased strength vs. Seaguar's Blue Label and Red Label brand leaders. Fluoro Premier offers incredible knot and tensile strength and is an extremely soft line with low memory. Ideal for any leader fishing, fresh or salt water. As with all 100% Fluorocarbon products, Seaguar Fluoro Premier Leader is much less visible underwater than monofilament line and virtually invisible to fish. Fluoro Premier is also UV resistant, chemical resistant, non-absorbant, high-density and impervious to cold conditions.