Air Flow: Venting incorporated into the frame for good air circulation to prevent formation of fogging. Anti-fog Coating: The inner surface of the lens has an additional anti-fog coating. Dual Density 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. Double Adjustment Strap: Two loops either side of the strap for symmetrical adjustment in the blink of an eye. Frameless Construction. Overstrap: Offset strap for compatibility with all types of helmet. Invisible Strap Insertion: The strap is inserted directly into the frame support for a minimalist design. Weight: 115g