The 5.11 Tactical Military Shirt BDU is a men's long sleeve shirt made of 65% polyester and 35% cotton ripstop fabric. It features a button-down front with buttoned shoulder epaulets, two chest pockets with button flaps, and two lower bellowed pockets with button flaps. The shirt has reinforced elbows and a bi-swing back for ease of movement. It comes in a variety of solid color options including black, khaki, navy blue, olive drab green, and sandstone. The shirt is designed for tactical, military, and law enforcement use.