You're looking at some of the best eye protection on earth. Oakley utilizes a special lens material called Plutonite® that effectively blocks 100% of UV and harmful blue light. This M Frame® eyewear features Oakley's exclusive Polaric Ellipsoid™ lens geometry, for enhanced optical resolution. The keel of the M Frame is articulated with hinges and sloped for a tight float across the brow. Made from O Matter™ material, the frame is a flexible synthetic design with incredible durability.' ' M