Flame-resistant VolCore workwear helps protect workers from short-term thermal incidents because it self-extinguishes and doesn't melt when exposed to flame. Crafted with durable materials to keep workers safe, comfortable, and compliant. 88% cotton 12 % nylon soft woven twill. AR/FR 7 oz. button down work shirt. UL Certified. 2 chest pockets with Velcro flaps.