Passive ventilation increases cickulaci air and helps keep the interior glass-cloudy and dry. The clamping system is designed for optimum adaptation to the anatomical shape of the face. Silicone insert for mounting tape ensures a perfect fastening helmet. All filters are fitted with a special anti-fog coating and a special varnish increases the scratch resistance. Protection against moisture formation inside the glass. Polarized lenses for increased sharpness and improved color perception.