The M-1965 Field Jacket (also known as M65, M-65 Field Jacket, and Coat, Cold Weather, Man's Field), named after the year it was introduced, is a popular field jacket initially designed for the United States Armed Forces under the MIL-C-43455 standard.

It was introduced into U.S. military service in 1965 to replace the previous M-1951 field jacket, itself an improvement on the M-1943 field jacket introduced during World War II, although the M-51 continued to be issued for quite some time.

The front portion of the jacket has two large hip pockets and two medium-sized breast pockets. The collar of the jacket features a zipper which houses a protective hood. The M-1965 field jacket can be combined with a button-in insulated lining for cold-weather wear, as well as a button-on fur trimmed winter hood. The jacket is fastened with a large aluminum (later brass, then nylon) zipper, with a storm flap fastened with snaps covering it.

The jacket is constructed of a durable cotton or cotton-nylon or cotton-polyester blend sateen fabric, which was windproof due to its tight weave and water-resistant due to that and chemical treatment, originally in OG-107. Like many other uniform items at the time and in the past, Marine Corps examples were stamped with "USMC". Later, the jacket was issued in the brown-dominant "Woodland" camouflage pattern in 1981, coinciding with the introduction of the Battle Dress Uniform (BDU). Later versions were made using the camouflage patterns of the Desert Battle Dress Uniform, the Desert Camouflage Uniform, and the Universal Camouflage Pattern before finally having been retired, by which time the normal name and branch tape and division patch locations were outfitted with hook-and-loop fasteners.

The M-65 field jacket was widely used by United States forces during the Vietnam War in which the jacket became useful for troops serving in the Central Highlands of South Vietnam due to its wind and rain resistance, especially in the monsoon season and after. It was and is a standard issue to US troops in several other wars all around the globe as well, due to its long service life. Variations of the jacket are used in countries like Austria or South Korea.

Please note: as these are military surplus there may be some colour, quality and style variation to the image shown.