With its cylindrical shape and frameless design, CLEAR offers the clearest (excuse the pun) and biggest field vision. Featuring magnetic lens attachment technology that makes it easy to switch between lenses. Dual-layered Grade 1 optical-quality polycarbonate lens. Anti-fog and anti-scratch coating with100% UV400 protection. Over the glasses fit and adaptable for most helmets. A yellow lens for overcast weather is included.