Ban-Lon (sometimes spelled BanLon or Banlon) is a trademarked, multistrand, continuous-filament synthetic yarn used in the retail clothing industry. It is artificially crimped in order to achieve greater bulk than ordinary yarns. It is frequently associated with 1950s and 1960s American clothing and culture, and at the time was most commonly used to make sweaters.
Ban-Lon came to be used as a punchline for jokes in films and on television shows in the 1990s. In an episode of NBC's Seinfeld series, Frank Costanza said that because of his "man breasts" he "wouldn't be caught dead in Ban-Lon", and in the film Romy and Michele's High School Reunion, Michelle comments, "...how am I gonna impress anybody by selling Ban-Lon smocks at Bargain Mart?"
- "There's nothing better in a sweater than you and the Ban-Lon name". Life. May 16, 1960. p. 86. Retrieved 30 July 2015.
- Rubenstein, Hal (1993-06-27). "What's Ban-Lon Got to Do With It?". The New York Times. Retrieved 2008-02-03.
- "So easy to be carefree in beautiful Ban-Lon sweaters". Life. August 19, 1957. p. 77. Retrieved 30 July 2015.
- Doctoroids. "The Doorman". SeinfeldScripts. Retrieved 19 April 2018.
- Romy and Michele's High School Reunion, 1997
- Joseph Bancroft & Sons Company records on licenses and trademarks at Hagley Museum and Library. The collection documents Bancroft's efforts to license and defend the Ban-Lon trademark.