Portflame FR Class D/N Two-Tone Vented Shirt. Features: Fabric conforms to ARC2 = 9.7cal/cm. Inherent flame resistant qualities will not diminish with washing. Back vent for breathability and comfort. Underarm cool flow mesh panel for ventilation. Contrast panels for protection against dirt. 50+ UPF. Colours: Orange/Navy, Yellow/Navy. Sizes: S, M, L, XL, XXL, XXXL