Fashion in the United States Apart from professional business
attire, fashion in the United States is eclectic and
predominantly informal. While Americans' diverse cultural roots
are reflected in their clothing, particularly those of recent
immigrants, cowboy hats and boots and leather motorcycle jackets
are emblematic of specifically American styles. Fashion norms
have changed greatly from decade to decade. The United States
has generally followed and in some cases led trends in the
history of Western fashion. It has some unique regional clothing
styles, such as western wear. Blue jeans were popularized as
work clothes in the 1850s by merchant Levi Strauss, a German
immigrant in San Francisco, and adopted by many American
teenagers a century later. They are now widely worn on every
continent by people of all ages and social classes. Along with
mass-marketed informal wear in general, blue jeans are arguably
U.S. culture's primary contribution to global fashion. The
country is also home to the headquarters of