Reduce burn injuries with VolCore™ FR Workwear by Radians®. 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 Listed piece in the line has been crafted with durable materials to keep workers safe, comfortable and compliant. Radians® VolCore™ Work Shirt, Arc Flame-Resistant Long Sleeve, Series: FRS-003, 4XL Size, Navy, Cotton, Button Down/Flap Closure, 7 oz Fabric Weight, 2 Pockets