Ray-Ban® RB8309 Tech Carbon Fiber sunglasses are an unquestionably cool, contemporary style. Made with the best of innovation and engineering Ray-Ban Tech sunglasses are so lightweight that they feel aerodynamic and emphatically secure on your face. The carbon fiber and resin composite materials weigh less than an ounce. They have slim elongated carbon fiber temples with an unexpected yet subtle shark-fin midpoint. The Ray-Ban signature is embossed on flexible bend temples and molded in rubber padded tips which only enhance their brilliance. These sunglasses look great on all face shapes and sizes. Prescription friendly.