Battle Dress Uniform (BDU) is the military uniform that the Armed Forces of the United States have used as their standard uniform for combat situations since September 1981. Side bar buttons for size adjustment Elbow reinforcement Adjustable cuffs with buttons Four pockets with flaps and button closure Material: 65% Polyester, 35% Cotton Manufacturer: Mil-Tec Manufacturer's number: 11801002 Mil-Tec BDU Combat Shirt Black