Lightweight composite fiberglass shell. Tooless, no-hassle flip-down shield. Adjustable flow-through ventilation system for cooling and comfort. Adjustable chin vent to aid in cooling and shield defogging . Removable and washable, air channeled comfort liner. Aerodynamic design for exceptional stability and low wind noise. Padded chin strap with D-ring closure and strap keeper . Snell M2005. DOT Approved .