Lightweight O Matter frame material (a patented Nylon composite) and Plutonite (a high-grade polycarbonate) lenses - 100% UV protection and highly impact resistant. 4 Base lens geometry with High Definition Optics (HDO) lenses. Prizm Lenses to reduce glare, enhance color, contrast and detail for an optimized experience. Unobtainium earsocks and nosepads for increased comfort and grip. A medium lens front designed for those who prefer to cover an average portion of the face. To help maintain the High Definition Optics (HDO) of Oakley lenses, your new eyewear comes with a specially-woven electrostatic Microclear bag for cleaning and storage. Using the woven electrostatic Microclear bag will preserve the superior optical quality of Oakley's pure Plutonite lenses. Hand wash and air-dry the Microclear bag regularly.