Combining performance and style to train outdoors, we have created the K3s Les Alpes. The latest and greatest technology at the service of the athlete. Special TAC 1.2 mm polarized interchangeable panoramic lens with anti-fog film, REVO cover and improved DrySky anti-fog system. Extremely flexible and resistant PC frame. Maximum lightness: they weigh only 26 g! Includes hard polyurethane case, microfiber bag and spare bands for nose and arms. Available accessories: photochromic, anti-fog and clear lenses as well as TR90 optical clip.