Oakley M Frame New Hybrid S Black/Grey 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 offers the comfort of a perfect three-point fit. In the domain of athletics, generic accessory has now become vital equipment. Prescription Ready.