In 2004, the Army introduced the Army Combat Uniform (ACU), which was modeled after the Marine's digital pattern uniform. The full ACU includes moisture wicking socks and T-shirt, coat, pants, combat boots, and a patrol cap. CONDITION #1 MEANS THESE ARE NEW OR LIKE NEW SHIRTS. ACU combat shirt SML ACU combat shirt LRG ACU combat shirt MED ACU combat shirt extra small