The technological evolution of Siroko Tech sports glasses puts the new K3 Ventoux on a new dimension. Special TAC 1.2 panoramic polarized and interchangeable lens with anti-fog film and REVO cover. Lightweight PC frame, only 27 grams! 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).