Frame: shatterproof superlight Nylon Mesh, weight: 0.63 ounces - Wraparound design: protects the eyes from wind, splashes and bad weather, provide enhanced peripheral vision Lens: available with photochromic , photochromic yellow , photochromic polarized and polarized lenses - Wide peripheral vision - 100% UV protection lens Size: suitable for all types of faces (narrow to large) - Lens width: 65mm ( curved sport wraparound windproof lens ) - Lens height 44mm Ergonomic soft nose pads: it adjusts itself to the size of the nose, comfortable and offers an exceptional fit for any shape of face - Grip at the tip of the arm and nosebridge: keeps the sunglasses from slipping Bertoni provides lifetime after sale service for all Bertoni goggles and sunglasses - Our product comes with a 100% No-Worries 30 days Money-Back Guarantee.