The K3 Criterium from Siroko take into account all the details and that’s why they are the perfect technical athletic glasses. Special TAC 1.2 mm panoramic polarized interchangeable lens with anti-fog film and REVO cover. Improved DrySky anti-fog system. Extremely flexible and resistant PC frame. Maximum lightness: they weigh only 27 g! Includes hard case, microfiber polyester bag, earsock and nose pad replacement rubbers. Accessories sold separately: Photochromic lens, Clear lens, ClearFog lens and TR90 OptiClip.