These performance sunnies are designed for cyclists and feature a shield Prizm?lens that enhances color and contrast so you can see more detail. 60mm lens width; 137mm bridge width; 140mm temple length Unobtainium ?nose pads increase grip with perspiration to help keep the eyewear securely in place Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility O Matter?nylon-infused plastic Made in the USA