Oakley OO7037-05 Airbrake Eyewear, Gunmetal Grey, Prizm Black Iridium Lens Rigid Front Frame with Flexible O-Matter Rear chassis Rigid Frame support to minimize optical distortion, eliminate nasal pressure and maximize airflow All day comfort of moisture wicking triple-layer polar fleece foam Switchlock Technology for the quickest and easiest lens change for any light condition Comes standard with two lens tints and case