Frame: A rigid PUR frame for flexibility at low temperatures. QD claws for attaching to the head. A logo in lacquered metal. Improved airflow Lens: double, cylindrical, ventilated, anti-scratch An anti-fog inner lens. 100% protection from UV-A, UV-B, UV-C rays. Removable filters for cleaning. No distorting lenses. Foam: Foam of outstanding density for unmatched comfort and feel. A two-layer foam specification: - 1 layer of extremely soft, medium-density foam. - 1 layer of black hypo-allergenic foam that comes into contact with the skin. Closed filters. Strap: An elastic strap with non-slip silicone. The QD pin allows the head to be removed and cleaned. A double buckle.