- MSA Large Replacement Staz-On Suspension designed for V-Gard caps and hats is constructed of lightweight, 1-piece injection molded high-density polyethylene. The 4 Point suspension system helps to keep helmet firmly in a place and easily clips into V-Gard hat or cap shell. Suspension features high-quality sweatband and nylon height adjusters for convenience. Suspension liner includes headband, nape strap, sweatband and adjustable crown straps. The rigid, dielectric shell works together with the suspension system for complete head protection. It and offers a semi-custom fit for wearer. It meets ANSI Z89.1-1997 type I standard.