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" Durable Carhartt Mens FR Duck Active Hooded Jacket | Black