Military issue undershirt. Tee Shirt for U.S. Forces for 20 years. They are new - slight factory IRR's but very serviceable with no rips tears or holes.Solid brown military t-shirt. 100% moisture wicking polyester, 50/50 poly-cotton, or 100% cotton. Will vary. All are cool and comfortable. SOLD in 3- PACK. ONLY 1 SIZE: Small.