Fiberglass MX helmet, MX helmet, Off-road helmet, Motorcross helmet, Dirt ... , ECE helmet DOT, ECE standard FIBER GLASS MX HELMETSHELL MULTI FIBERGLASS-REINFORCED PLASTICS NUMBER OF EPS TWO EPS SIZES VENTILATION SYSTEM ... DRY AND COMFORTABLE VELOURS, FULLY REMOVABLE AND WASHABLE RETENTION SYSTEM DOUBLE D RING AVAILABLE SIZE XS(53-54CM)~XXL(63~64CM ...