See clearly, with the Cocoons Fitovers OveRx C702R MX Polarized Sunglasses, designed to securely and comfortably fit over a wide range of prescription eyewear frame sizes and shapes. They feeature patented frames that are constructed from extremely durable ballistic nylon and feature the Polar lens system that exceeds the highest level in lens quality, the Class 1 European Standard for optical clarity and performance. Flex2Fit temples allow you to custom contour the temple shape for an exact fit that is extremely comfortable and secure. Designed to fit over a wide range of prescription eyewear. Fits over prescription frames measuring less than 142 mm in width by 39 mm in height or 5.5 inches in width by 1.5 inches in height. Full wrap frame design completely isolates the eyes from the elements. Flex2Fit temples for a custom fit. Scratch resistant Polar lenses are durable, lightweight. Polarized UV400 for reduced glare and protection. Polarized amber lens is enhanced with an emerald green mirror to maximize glare elimination and amplify contrast for exceptionlly sharp visual accuity in variable light conditions. 100% UVAUVB, 15% LT. Cat, 3 lenses for strong sunlight. Ultra lightweight construction. Manufacturers lifetime warranty. Cleaning cloth and neoprene case included.