Oakley Sutro Non-Polarized Sunglasses - Designed with performance in mind, Sutro gives cyclists a bold and versatile look that they can confidently wear on and off the bike. Features Durability and all-day comfort of lightweight O Matter frame material Unobtainium nosepads increase grip with perspiration to help keep the eyewear securely in place. Prizm lenses are designed to enhance color, contrast and detail.