The technological evolution of sports glasses that has made such a difference puts the new K3 Alpe D'Huez on a new level of quality. Optimized performance provided by their ultra-lightweight PC frame of only 27 grams and their interchangeable polarized Special TAC 1.2 lens. All styles in the K3 collection count on our DrySky+ ventilation system to guarantee excellent vision in any situation. This product includes PU hardshell case, microfiber pouch and replacement rubber bands for temples and nose pad. Available K3 accessories: photochromic lens, TR90 optical clip, anti-fog lens and clear lens.