For your MSA Thermalgard® and Topgard® hard hats, the Fas-Trac® III 4-point replacement suspension provides excellent security. Constructed for excellent comfort, the 4-point adjustment can be easily adjusted and fits most. To prevent pressure-buildup, it comes with a flush rear lug that helps during longer work hours. The included sweatband fully covers the head to prevent moisture buildup from affecting your work. Featuring a low nape strap, it provides more stability than most suspension systems even when bending down.