M Frame Hybrid Photochromic Sunglasses - Maintain visual clarity in a world of performance-sinking distortion, we seared optics in an acid bath of innovation. Incorporating High Definition Optics (HDO ) technology, lens geometry comes in five interchangeable lens shapes. The hinged frame of these sunglasses offers the comfort of a perfect three-point fit. In the domain of athletics, generic accessory has now become vital equipment. Lightweight stress resistant O Matter chassis XYZ Optics for maximized clarity at all angles of vision, even at lens periphery Patented toric performance shield for complete, distortion free coverage Plutonite lenses to block 100% of all UVA, UVB, UVC and harmful blue light Exceeds ANSI Z87.1 for optical and impact requirements Patented three point fit maintains precise optical alignment and comfortable, secure mount Metal icons and folding sculptural hinge mechanism Interchangeable lenses for optimal performance conditions Optional Iridium coatings and lens tints reduce glare and tune transmission for any light condition Unobtanium nosebombs and earsocks ensure maximum comfort and increase grip with perspiration Available with Oakley Prescription Lenses (+2.00 to -5.00 with cylinder up to -2.00) Also available in: M Frame Hybrid