Material:ABS,PE,PP,HDPE Anti-shock Light weight,Good strength,Good toughness Petroleum, chemical ... , power ,construction, mining Material: ABS, PE, PP, HDPE is availableColor: red, blue, yellow, white, black, orange is okRib ... buckle, pinlock, ratchetColourRed, Yellow, WhiteSize52-60CMFeatures· Safety helmet with a versatile new shell design of V rib with 6 cooling vents on top rain ...