This is a genuine vintage US military issue combat jacket, specifically a Battle Dress Uniform (BDU) shirt in the iconic 3-color desert camouflage pattern (DCU). The jacket, which was widely used by U.S. Armed Forces from the 1990s into the early 2010s, features a button front closure, a standard collar, and four large, functional flap pockets on the front. Constructed from a durable cotton-nylon blend, this piece is a staple of military surplus and vintage apparel, often noted for its rugged durability and distinctive sand, brown, and green pattern.