Ocea EX Fluoro Leader is a premium quality fluorocarbon leader that provides many advantages when fishing in clear water for wary fish. Thinner than traditional mono leaders and with a refractive index very close to that of water, making it virtually invisible, it is also incredibly abrasion resistant and knots exceptionally well, even in the larger sizes. Virtually invisible when underwater, you’ll instantly see an improvement in your strike rates, especially in clear water and the excellent abrasion resistance makes it tough enough to overcome underwater obstacles, hard bony mouths and sharp fins. The secret of the Ocea EX Fluoro Leader’s ultra high performance is due to the method of construction. An inner core made of soft fluorocarbon produces the excellent knot strength, whilst a hard outer shell delivers the abrasion resistance required to overcome dangerous situations. Finally a fluorine coating is added to provide a smooth surface finish which helps knots to be tightened correctly without any structural damage to the line.