A skinhead is a member of a subculture which originated among working class youths in London, England, in the 1960s and soon spread to other parts of the United Kingdom, with a second working class skinhead movement emerging worldwide in the late 1970s. Motivated by social alienation and working class solidarity, skinheads (often shortened to "skins" in the UK) are defined by their close-cropped or shaven heads and working-class clothing such as Dr. Martens and steel toe work boots, braces, high rise and varying length straight-leg jeans, and button-down collar shirts, usually slim fitting in check or plain. The movement reached a peak during the 1960s, experienced a revival in the 1980s, and, since then, has endured in multiple contexts worldwide.