In Spring and summer, when the garish T-shirts drift across the street like clouds, , who would come to know, T shirt was originally a underwear of heavy manual labor workers . In general, men's T shirt, now a bit like woman's bra, is not easy to expose, but when it is equipped with a sleeveless one-piece overalls, it is exposed its real apearance. In the early 20th century, in clothing company's catalog, T shirt is only as an underwear to sell. By 1930, though T shirt's image as underwear does not change much, apparently people are starting to wear T shirt on the outside. This is what people hear as "sailor shirt". Sailors wear a T shirt out to sea, blue ocean and clear sky applied the first ray of romantic colors to it. When this kind of not-eye-catching without-collar short-sleeved knit shirt one day appeared with big star Marlon Brando on screen, the excitingfilm fans felt extremely amazed. On December 3, 1974 "A Streetcar Named Desire" premiered in New York. Attracting people's Heart is not only Marlon Brando's lightly rough manhood and eyes with nasty smile, but also the plain white T shirt. The image of Brando's T shirt design is not entirely well in advance, it was just a coincident. With the 1951 "Streetcar Named Desire"in the U.S. released, Brando's the image of a white T shirt had the same name with the whole country, a soft and considerate mens T-shirts had freed the men from the rigid , monotonous, conformist dresscode tradition of high quality, masculine physique is also scared to show in the blind field of vision is also a time to become the nation and the world's the copy.