A revelation in the world of sunglasses. Photochromic lenses are high-performance lenses - the technology allows the lens to darken and lighten according to the intensity of light it is exposed to. Sunglasses with photochromic lenses darken as the degree of UV strenghtens while being perfectly transparent indoors or in the shade. Thanks to the invention of photochromic lenses, you only need one pair of glasses indoors and outdoors. A complete solution and a great inspiration for your eyes.