A leather jacket is a jacket-length coat that is usually worn on top of other apparel or item of clothing, and made from the tanned hide of various animal skins.
The jacket was often part of an overall uniform ensemble meant to protect bomber pilots from exposure to the extreme climate conditions found at high altitudes and often incorporated sheepskin, using the intact fleece on the inside for warmth.
Sewing materials such as thread, lining, seam tape, buttons, snaps and zippers are generally bought from outside vendors and stored in the garment factory.
Such jackets were popularized by numerous stars in the 1940s and 1950s, including actor Jimmy Stewart (who had actually commanded a U.S. bomber squadron during World War II) in the film Night Passage (1957).
[3] The brown leather jacket has become a de rigueur part of the wardrobe for the Hollywood adventurer, from Gary Cooper in For Whom the Bell Tolls to Harrison Ford in the Indiana Jones film series.
Later depictions of this subculture feature via The Fonz from the television series Happy Days, produced in the 1970s and 1980s, but set in the 1950s and 1960s (Fonzie's leather jacket is now housed in the Smithsonian Institution), and in the film duos Eddie and the Cruisers and Grease.