Vented back yoke & shoulders Underarm cotton mesh vents Two button down chest pockets Pen partition in left pocket. Fabric: Main: 145gsm, 100% cotton twill Mesh: 200gsm, cotton mesh. Sizes: S, M, L, XL, 2XL, 3XL, 4XL, 5XL. Colours: ORANGE/NAVY, YELLOW/GREEN, YELLOW/NAVY