Casual Friday, also called Dress Down Day, Casual Dress Day, and Business Casual Day, is a loosening of the business world's unwritten dress codes on designated days. Employees trade suits, ties, high heels, silk shirts, scarves, and other formal business attire for slacks, sports coats, polo shirts, pressed jeans, loafers, knit tunics, and flat-heeled shoes. Casual days arose in the mid-1980s influenced by the jeans-T-shirt-sneakers uniform of the computer industry, as well as increased numbers of women in the workplace and work-at-home employees. The concept caught on in the early 1990s and, fueled partly by Levi Strauss's marketing, by the mid-1990s had become a corporate institution. By the late 1990s, employees below middle management in one third of U.S companies had gone casual five days a week, according to an Evans Research Associates survey.
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Levi-Strauss & Company. How to Put Casual Businesswear to Work. Version four. San Francisco, California, Levi-Strauss & Co. Consumer Affairs, 1998.
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Weber, Mark. Dress Casual for Success … for Men. New York, McGraw-Hill, 1997.
"Casual Friday." St. James Encyclopedia of Popular Culture. . Encyclopedia.com. (November 14, 2018). https://www.encyclopedia.com/media/encyclopedias-almanacs-transcripts-and-maps/casual-friday
"Casual Friday." St. James Encyclopedia of Popular Culture. . Retrieved November 14, 2018 from Encyclopedia.com: https://www.encyclopedia.com/media/encyclopedias-almanacs-transcripts-and-maps/casual-friday