Our water repellent, regular length men's deluxe insulated bib overalls with reflective trim feature reinforced double knees, full Nomex® taped ankle-to-hip brass zippers with concealed snap closure, and elasticized shoulder straps with non-conductive adjustable hardware. The outer shell is made of flame resistant, 6 oz. (205 g/m sq.) 93% Nomex® Aramid / 5% Kevlar® Aramid / 2% other fiber. HRC rating 4, ARC rating E/BT 59 calories/cm sq.