Goggles comfort is provided by a customized foam specially fitted to the helmet, ensuring an excellent seal. The goggles can be perfectly adjusted using two semi-flexible fastening devices. For maximum efficiency, the 210° goggles use the RapidClip technology and can be interchanged with a standard strap (sold separately). They also offer the widest field of vision for this class of goggles. To achieve this unmatched feature, our designers created the largest pre-curved polycarbonate lens ever developed, mounted on a polyurethane frame.FEATURES Frameless design Flexible polyurethane frame Injection molded polycarbonate pre-curved lens Anti-scratch treatment UV protection Triple layered ventilated foam Top and bottom ventilation ports within the frame Adapted for prescription glasses Interchangeable strap Pins for Tear-Off Includes: RapidClip strap Removable nose guard Clear lens & Mirror lens included Single lens with pins for Tear-Off