Designed to handle the most rugged working conditions, the Carhartt Men's FR Loose Fit Midweight Twill Long Sleeve Shirt keeps you safe from dangerous arcs and flame. It's made of FR twill, with durable triple-stitched seams. The utilitarian design features two flap pockets on the chest.Features7-ounce, 88% cotton / 12% high-tenacity nylon FR twillMeets the performance requirements of NFPA 70EUL classified to NFPA 2112Carhartt FR label sewn on left pocket; NFPA 2112/CAT 2 label sewn on sleeve placketCarhartt-strong triple-stitched main seamsButton-down collar and front; Flame-resistant melamine buttonsExtended sleeve plackets with adjustable two-button cuffsTwo chest pockets with flaps and button closures