MSA V-Gard Hard Hats have a polyethylene shell and suspension system that work together as a protective system for one of the most important parts of the body. The Staz-On pinlock suspension system features a shock-absorbing 4-point suspension with headband, nape strap, Cushionaire sweatband, and adjustable crown straps. The hard hats are also compatible with welding helmets, faceshields, as well as ear muffs. These helmets meet and often exceed the applicable requirements that are set by ANSI Type I helmets, which is outlined in ANSI Z89.1-2003. These hard hats are SEI certified and are sold individually. The MSA hard hat with Staz-on pin-lock suspension is a top seller for many industrial applications because it offers a strong, comfortable, and durable choice in safety.