These 100% Cotton FR Coverall reduces burn injuries with FR fabric. Flame-resistant (FR) VolCore workwear helps protect workers from short-term thermal incidents because it self-extinguishes and doesn t melt when exposed to flame. Each UL certified piece in the line has been crafted with durable materials to keep workers safe, comfortable, and compliant. Complies with ASTM, ATPV, NFPA, PPE DIR 89/866/EEC, UL.