Bertoni Motorcycle Goggles Padded Sunglasses - Photochromic Antifog Lens - Removable Clip for Prescription Lenses - Interchangeable Arms and Strap - by Bertoni Italy F366A Motorbike Bikers Glasses Frame: mat black anticrash polycarbonate - ADJUSTABLE NOSEPAD: soft Adjustable nosepad offers an exceptional fit for any shape of face. This system also allows to adjust the glasses height and their distance from the face to prevent misting - Thanks to their excellent grip at arms, at the adjustable nose pads and thanks to the elastic strap, this sunglasses will stay in place NEW Sunsensor Photochromic Antifog Lens from cat 0 to 3: Innovative Technology , react consistently to light and UV rays - they darken from category 0 transparent ( indoor, foggy days, bad weather ) to grey category 3 sun tint ( outdoors, high brightness ), this lens adapts itself to changes in light - Made in Shatterproof PC 2.2mm Antifog Anticrash - 100% UV Protection - Wide peripheral vision Included a Removable Optical Insert for Prescription lenses - any strength friendly, your optician can easily assemble your prescription lenses to the clip - The inside of the front frame is covered with a removable windproof soft foam for a comfortable fitting Interchangeables arms with elastic strap to have a very skin tight fitting for motorcycle and extreme sports - Size: suitable for all types of faces (narrow to large). 100% UV protection - Wraparound design: protects the eyes from wind and bad weather, provide enhanced peripheral vision - Lens width: 65mm ( curved sport wraparound windproof lens ) - Lens height 44mm - Optical Clip: 40x25 mm. - 4 Years Warranty - Lifetime Support - 30 days to return