Photochrome F333 by Bertoni Italy. Photochromic sunglasses quickly convertible to a goggles. Temples can be easily removed and changed for an adjustable elastic strap in order to have a very skin tight fitting for motorcycle and extreme sports The inside of the front frame is covered by a removable windproof soft foam for a comfortable fitting, specially if used with the elastic strap . Sportive people and bikers will be captivated by the characteristics of these PHOTOCROMIC lenses that darken and lighten automatically depending on the UV light exposure. Lenses are also treated by a special antifog resin. Packing : cartoon, semi-rigid case – cord – microfiber cleaner. Bertoni provides lifetime after sale service for all Bertoni goggles and sunglasses.