Aerodynamic shell design constructed of advanced poly-alloy plastic for lightweight strength Clear-coat finish to protect paint and graphics Hypo-allergenic nylon liner and cheek pads are removable and washable Ear cavities for speakers Hard-coated face shield is optically correct compound curved and UV- and scratch-resistant; inner flip-down smoke shield and visor Advanced ventilation system with chin side rear and forehead vents Cam buckle-style quick-release retention system DOT FMVSS-218 and ECE 22.05 certified