Constructed from a heavy-duty 13-ounce, 100% cotton flame-resistant (FR) duck fabric. Lined with an 11.5-ounce FR quilted twill and equipped with FR modacrylic batting insulation for superior warmth. Designed with a high back, equipped with flame-resistant suspenders and center-release buckles for a secure fit. Includes a multi-compartment bib pocket for convenient storage of tools and essentials. Features two spacious lower-front pockets and two reinforced back pockets for additional storage. Equipped with double-layer knees, which offer space for knee pads and facilitate debris removal. Ankle-to-thigh brass leg zippers with Nomex® FR zipper tape, complete with protective flaps and arc-resistant snap closures for enhanced safety and convenience. Compliant with NFPA 70E performance requirements for safety. UL® classified according to the stringent NFPA 2112 standards. Features Carhartt FR and NFPA 2112/CAT 4 safety labels prominently displayed on the front pocket. Appear to be unworn.