The Oakley Sutro Sunglasses are designed with performance in mind. The Sutro gives cyclists a bold and versatile look that they can confidently wear on and off the bike.Key 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.