Forefront FR Vented Back Shirt, Khaki, Button Down Collar, 7 oz. FireZero FR Fabric, 90% Pima Cotton/10% Nylon, Twill Weave, Pointed Flap Pockets with Buttons, Pencil Lines on Both Chest Pockets, Aramid High Tenacity FR Thread, Thermally Protected Metal Components, Melamine Buttons, Size: S