Developed, tested, and proven at the highest levels of professional Motocross and Supercross racing, the SUPERTECH Goggles already have two championships to their name. Designed to provide unrivaled comfort, precision clarity, and moisture management, the new SUPERTECH Roll-Off Goggles ensure the ultimate in off-road and motocross vision performance. The SUPERTECH Goggles with the Roll-Off kit, consists of a lens, two rolls of film, a visor and our Wide Vision Roll-Off system. The injection-molded Roll-Off lens ensures nearly zero visual distortion. All lenses have 100% UVA protection. All Roll-Off lenses have built-in silicone ""Glide Lines"" to keep the film from binding or sticking to the lens. The SUPERTECH, Wide Vision Roll-Off kit is a class leader in peripheral vision with over 160mm of width between Roll-Off cartridges. Alpinestars official replacement parts.