Original WWII USMC P41 HBT Jacket Coat Shirt Marine Corps mens utility Original WW2 US Marine Corps P41 Jacket Size 44 USMC in Belts NEEDLEWORK HEADQUATERS: USN P41 JACKET I think this is a WW2 USMC p41 jacket and if it is, is their anyway to Original WW2 USMC P41 Jacket Named To A Leuthold Size 38. #4846034520. 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.