For 10 points, name this top article of clothing that is named after the shape of the letter of the alphabet it resembles.
A major innovation in the use of this article of clothing was developed by Sam Kantor through his company Tropix Togs in the 1950s. The Oxford English Dictionary claims that the first mention of this article of clothing in print is in F. Scott Fitzgerald's This Side of Paradise, in which Amory Blaine brings his to college. This article of clothing was first advertised by the Cooper Company, who targeted their ads toward bachelors and noted that it did not require any "safety pins". This article of clothing evolved from the 19th-century "union suit". Marlon Brando wearing this article of clothing during performances of A Streetcar Named Desire, and James Dean appearing in one during some scenes of Rebel Without a Cause helped them gain their everyday popularity. For 10 points, name this top article of clothing that is named after the shape of the letter of the alphabet it resembles.
A major innovation in the use of this article of clothing was developed by Sam Kantor through his company Tropix Togs in the 1950s.
T-shirt [prompt on shirts]