I think this is a WW2 USMC p41 jacket and if it is, is their anyway to Original WWII USMC P41 HBT Utility Jacket Marine Corps 1941 Harringbone Original Named WWII USMC P41 HBT Utility Jacket Shirt UNIS Artillery USMC P41 HBT Uniform WWII Impressions, Inc Original WWII USMC P41 HBT Utility Jacket Marine Corps 1941 Harringbone Original WW2 US Marine Corps P41 Jacket Size 44 USMC in Belts. The P41 USMC Jacket reinterprets the iconic U. S. Marine Corps utility jacket through Spiewak?? s refined military heritage lens. Crafted from authentic cotton back sateen, the fabric offers lasting durability with a soft yet structured hand, developing rich, vintage inspired fading and wear patterns over time.