Oakley SI M Frame
Oakley SI M Frame Sunglasses
Incorporating HIGH DEFINITION OPTICS (HDO) technology, lens geometry comes in five interchangeable lens shapes. All lenses are made of pure Plutonite, a proprietary material that offers the highest level of optical clarity available in eyewear. You get razor-sharp clarity at all angles of view, which maximizes peripheral vision and protection against sun, wind and side impact.