ONEAL 1Series RC Youth MX Helmet - ECE 22.06SIZING CHART Do you need an ABS motocross helmet that you can rely on in every situation? Then the 1SRS is the right choice. With this ONEAL MX helmet you can rely on high quality engineering, comfort, safety and stylish design. FEATURES: Polycarbonate ABS Shell construction Single outer shell Construction Shell weight (size large): 1500grams (50) Ultra plush, removable washable padded liner keeps you cool and dry by wicking away sweat Adjustable