Vintage USMC ,True Vintage P53 HBT Shirt. Adopted after the Korean War, the 1953 Marine Corps Utility Shirt was made from sage green herringbone twill (HBT) cotton.It had two patch pockets with V-cut flaps,Named USMC P58 Shirt Size 14 1/2x 32 Corporal,USMC P53 Uniform Utility Shirt Trousers HBT Korea Vietnam US Marine Corps Named,P53 Usmc Shirt - Etsy