Oakley Ballistic Crosshair Gray Prizm Gunmetal Oakley's Crosshair features An Ultra-Lightweight C-5 Alloy Frame Material With Unobtainium Components To Keep a Grip On Comfort. Its Prizm lenses Is To Enhance Color, Contrast And detail For An Optimized Experience. Frame Color: Gunmetal Temple Sleeves: Unobtainum Nose Piece: Unobtainium Lens Type: Prizm Lens Color: Gray Frame Material: C5 Alloy