These MSA protective hard hats with Staz-On suspension are made from a polyethylene shell and they work with a suspension system that works together in order to provide a top choice in industrial applications. These hard hats offer strong, comfortable, and durable protection within a slotted cap. The shell is injected with a high-density polyethylene material for increased durability. There is a pinlock suspension system that features shock-absorbing, 4-point suspension, headband, nape strap, Cushionaire sweatband, and adjustable crown straps. The White hard hat is compliant with ANSI Z89.1-2004 standards, Class E and G. They are also SEI certified and sold individually.