Aerodynamic shell design constructed of advanced poly alloy plastic for lightweight strength Clear-coat finish to protect paint and graphics Hypo-allergenic, antimicrobial 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 and ECE22.05 certified