Features of the Oakley TwoFace Covert Polarized Sunglasses Plutonite lens maximizes clarity and impact resistance while filtering out 100% of all UVA, UVB, UVC and harmful blue light up to 400nm Uncompromising protection against High-velocity and High-mass impact Three-point Fit ensures the frame makes contact only at the bridge of the nose and the sides of the head O-Matter, a stress-resistant frame material that withstands environmental extremes, is lightweight yet Highly durable Prizm Daily Polarized lenses reduce harsh glAre and allow you to see the world in dynamic High-definition The High strength-to-weight ratio of Oakley's aerospace-grade aluminum alloy minimizes weight to optimize comfort The reduced side curvature of the 6 base lense is ideal for casual use and provides clarity and peripheral sun protection