The Oakley Sutro Lite OO9463 946319 sunglasses are lightened at the bottom for increased comfort during long usage sessions. Made of O Matter, Oakley's exclusive material, they are lightweight and durable on the face, and stay securely in place thanks to the Unobtainium nose pads. Visibility and contrast are significantly improved with Oakley's Prizm technology. Perfect for sports enthusiasts or those seeking a wrap-around, durable, and protective design.