Air Flow : Venting incorporated into the frame for good air circulation to prevent formation of fogging. Anatomic frame : Cuts on the frame for more flexibility. Anti-fog coating : The inner surface of the lens has an additional anti-fog coating. Dual Soft Foam : Two layers of foam for optimum comfort and shock absorption with a soft-touch layer for softer contact with skin. Full silicone strap : Strap lined with a silicone strip for perfect grip. Minimalist Frame : Super-slim frame to give extra-wide field of vision from every angle. The skier's view is completely clear both laterally and vertically. Overstrap : Offset strap for compatibility with all types of helmet. Reactiv Photochromic lens from c 1 to c3 Spherical double lens Symmetrical adjustment : Two loops either side of the strap for symmetrical adjustment in the blink of an eye. Ventilated lens : Additional ventilation via the lens to prevent any fogging.