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. Soft and comfortable 100% cotton interlock knit. AR/FR 6.5 oz. cotton long sleeve henley. Left chest pocket with pencil slot. Dual pencil/pen pocket on upper left sleeve. UL certified.