Features Include: Composite Fiberglass Lightweight Shell for superior performance Air-Flow Vents, Adjustable Chin and Scalp Vents with Rear Exhausts. Plush Removable/Washable moisture absorbent fabric Interior. Cheek Pads and Crown Liners are interchangeable for custom fit. Z-19 Shield Optically correct with Lock Button in Closed position Safety Standard: Snell M2020D & DOT Rated