Sightfree G3 is a 3rd generation, low diameter fluorocarbon that offers incredible breaking strain to diameter ratios. Made from 100% fluorocarbon, Sightfree G3 has the same refractive index and low visibility as regular Sightfree, but with a lower diameter for a given breaking strain. Unlike other low diameter fluorocarbons, Sightfree G3 retains its integrity in use and is far less prone to tangles, making it far easier to use.