The Radians FRS-003 Volcore™ Long Sleeve Cotton Button Down FR Shirt 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. Radians FRS-003 (TALL) VolCore Long Sleeve Cotton Button Down FR Shirt - Gray