Fox Racing 30907-018-2X - Meets US DOT and new EU ECE 22.06 and DOT certifications MIPS equipped. Dual-density EPS liner is deigned to protect by spreading the forces of an impact across a wider surface area. 4 shell and 6 EPS sizes for a precise fit (adult and youth). 7 intake and 4 exhaust vents for optimum airflow. Adjustable visor with breakaway side screws. Customizable cheek pads. Available cold-weather kit (sold separately). Lightweight injection molded polycarbonate and ABS shell construction. Removable and washable comfort liner and cheek pads. Removable mouth vent cover and padded EVA chinbar. Steel D-ring chin strap closure. Materials: EPS, ABS, polyester. Sizes: YS, YM,.