- 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 and NFPA 2112/CAT 4 labels sewn on left-chest pocket - Spread collar; Two-way brass zip with Nomex® FR zip tape; Inner and outer storm flaps with hook-and-loop closure for electric-arc protection - Under-collar hood snaps for optional hood - Two chest pockets - Two inner patch pockets with FR hook-and-loop closures - Back length: Large regular: 31.5"; Large tall: 33.5"