The Siroko K3s Unicorn Running are designed for the most free spirits. Magic, mystery, beauty and delicacy are the culmination of our dream: to create the best model of sports glasses with a unique design. They have a 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 27g! Includes hard polyurethane case, microfiber bag and spare bands. Available accessories: photochromic, anti-fog and clear lenses as well as TR90 optical clip.