ONEAL 5Series POLYACRYLITE Solid V.23 Adult MX HelmetSIZING CHART Features: ABS shell construction Shell weight (size large): 1380grams (50) Coolmax liner Ultra plush removable washable padded liner keeps you cool and dry by wicking away sweat Adjustable visor design Multiple air vents help keep you cool and dry Durable multi colored clear coated graphics Replacement parts available Meets DOT, ECE 22 05 and AS NZS safety standards