Description This men's rugged layer takes our classic active jac and adapts it for the most hazardous work conditions out there. It's made with heavyweight cotton canvas that fights off wind and cold while providing protection against flames. A quilted lining adds extra warmth and comfort. Engineered for high warmth in severely cold conditions. See Technology section below for more details.PRODUCT DETAILS:13-ounce, 100% cotton FR duck 11.5-ounce FR quilted twill lining; FR modacrylic batting insulation for warmth Meets the performance requirements of NFPA 70E UL classified to NFPA 2112 Carhartt FR label sewn on front pocket; NFPA 2112/CAT 4 label sewn on zipper flap Quilt-lined hood with adjustable Nomex FR drawcord Brass front zip with Nomex FR zip tape; Inner and outer hook-and-loop storm flaps for electric-arc protection Nomex FR rib-knit cuffs and waistband Two lower-front pockets Two inner patch pockets with FR hook-and-loop closures Back length: Large regular: 29"; Large tall: 31" Imported