National Safety Apparel Enespro C45NPQHLT  $416.97 No Sales or Local Tax Free Shippng  40cal Arcguard Revolite Bib Overalls.  Arc Rating: 40 cal/cm² CAT 4 Fabric/Material: 11.2 oz. RevoLite  50% lighter than standard 40 cal/cm2 Arc Flash PP  Inherently flame resistant for FR protection FR fabric will not melt, drip, or ignite  Quick disconnect and easy adjustable shoulder straps  Heavy duty 26" zipper closure on each leg  Expandable leg opening to fit over boots