Ultra HD lenses manufactured from high-impact resistant and lightweight polycarbonate 5.5-base cylindrical shield lens for increased peripheral view and protection 360º visibility for unobstructed views and optimal field of vision Interchangeable scratch resistant lenses provide 100% UV protection (UV400) Lower air scoops to increase ventilation while reducing moisture on the lens As the eyewear of choice for world champion cyclist Peter Sagan, the Speedcraft is fully loaded with our most advanced technology for the ultimate in sports performance.