The Siroko K3 Tourmalet have passed all the most demanding quality tests and are at the peak of sports optics. Special TAC 1.2 mm interchangeable panoramic polarized lens with anti-fog film and REVO cover. Ultra-light PC frame (only 27 grams!). Reinforced DrySky anti-fog system. Includes polyester bag, polyurethane case and spare bands for nose piece and arms. Accessories: photochromic lens, TR90 optical clip, anti-fog lens and clear lens (sold separately).