Carhartt's flame-resistant Work-Dry® lightweight twill shirt is a comfortable choice on warmer days. Constructed of lightweight, 6-ounce FR twill in a blend of 88% cotton and 12% high-tenacity nylon, its Work-Dry® material wicks away moisture for comfort. Two chest pockets with flaps and button closures add utility, and two-button adjustable cuffs enhance fit. Meets NFPA 70E standards. *6-ounce FR twill: 88% cotton/12% high-tenacity nylon *Work-Dry® material wicks away moisture for comfort *Anti-odor fabric treatment -Flame-resistant fabric by Mount Vernon Mills.