Ideal for outdoor activities, these high-performance sunglasses feature ultra-lightweight frames and a shield lens to ensure maximum peripheral vision. The temples adjust to three different lengths for helmet compatibility and signature Prizm technology heightens visual clarity, while Switchlock™ technology provides easy lens changing. 31mm lens width; 131mm bridge width; 121mm temple length 100% UV protection Unobtanium® temples and nose pads ensure no-slip grip Fast, secure lens replacement with Switchlock interchangeable lens technology High Definition Optics® eliminates distortion for clearer, sharper, more accurate vision Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility Propionate Made in the USA