Army - 501st Infantry Regiment w IRAQ SVC V1 Long Sleeve100% comfortSoft cotton Double needle stitching throughout Coverseamed neck with lay flat collar Tag free neck label Shoulder to shoulder tape Comfortable rib knit cuffs Sport Grey is 99% cotton, 1% polyester; Light Steel is 90% cotton, 10% polyester. The 501st Parachute Infantry Regiment was activated at Camp Toccoa, Georgia on 15 November 1942. The 501st was part of the 101st Airborne Division during World War II and the Vietnam War.