Seaguar InvizX is a top fluorocarbon mainline engineered to provide extremely low memory which makes it soft, supple and more castable. It’s soft and strong with exceptional sensitivity, low memory, virtually no stretch, fast sinking and superior knot strength for unmatched performance — in most any conditions. Ideal for freshwater multi-species fishing applications — fish can’t see it and it’s very soft and sensitive. Easy to manage on a reel. Super sensitive and abrasion resistant, the soft exterior resin provides tournament-grade knot strength and flexibility, while the hard interior resin vastly improves tensile strength. Only Seaguar makes its own fluorocarbon resins — exclusively formulated to assure optimum performance.