These round sunglasses with no-slip nose pads and lightweight O-Matter?frames are designed for an active lifestyle. 52mm lens width; 20mm bridge width; 137mm temple length 100% UV protection Earsocks are molded onto the temples to help provide all day comfort and excellent retention No-slip Unobtainium?nose pads help keep the frame from slipping down your face without compromising on style Prizm lenses are designed to enhance color, contrast and detail to make the most of any activity Propionate Made in the USA