Korean War Style U.S. Army M-1951 Field Trousers. Beautiful example of original U.S. Army issue M-1951 Field Trousers. These are Vietnam War vintage and have a new nomenclature: "Trousers, Cold Weather, etc." Identical to original M-1951 style. Appear to be based on late WWII Airborne trousers. Cargo pockets with leg ties. Heavy duty zipper fly. Snap pockets all around. Nice large size: LARGE-REGULAR. Look virtually unused, EXC-MINT