Material: polycarbonate Surface treatment: hardening and fog proof Standard: GA294-2001 explosion proof GB811-1998.DOT.ECE Co Material: polycarbonateSurface treatment: hardening and fog proofStandard: GA294-2001 explosion proof GB811-1998.DOT.ECEColor: transparent, red, brown, deep brown, light blue, seven colorsCustom-tailor color & shape of the products by your order. helmet inner visor