Darwin Hi-Vis Lightweight Class N Shirt L/S. Features: 100% Cotton fabric for added comfort and breathability. 2 pockets for secure storage. Gusset sleeves for added safety. Underarm cool flow mesh panel for ventilation. Back vent with cool flow mesh. 50+ UPF rated fabric to block 98% of UV rays. Colours: Low. Sizes: S, M, L, XL, 4XL, 5XL, XXL, XXXL