Lederhosen (German for leather breeches; singular: Lederhose) are breeches made of leather; they may be either short or knee-length. The longer ones are generally called Bundhosen.

There is a widespread misconception that lederhosen are a traditional national costume (Tracht) in German-speaking countries. They should rather be considered to be workwear or leisurewear for working-class men.

The word lederhosen is frequently mispronounced leiderhosen (literally, "sadly-breeches") or liederhosen ("songs-breeches"). The German pronunciation is [ˈleːdɐhoːzən]. In English both /ˈleɪdərhoʊzən/ and /ˈliːdərhoʊzən/ are used.

Formerly, lederhosen were worn for hard physical work; they were more durable than a textile garment and easier to clean. Today, they are mostly worn as leisure wear.

Lederhosen were once widespread among Germanic men of the Alpine and surrounding regions, including Bavaria, Austria, and the German-speaking part of Italy's province of South Tyrol (formerly part of Austria until after World War I). But they were not usually worn in southwestern Germany or Switzerland.

Peter Behrens (April 14, 1868 – February 27, 1940) was a German architect and designer. He was important for the modernist movement, and several of the movement's leading names (including Ludwig Mies van der Rohe, Le Corbusier and Walter Gropius) in earlier stages of their careers.

Behrens attended the Christianeum Hamburg from September 1877 until Easter 1882. He studied painting in his native Hamburg, as well as in Düsseldorf and Karlsruhe, from 1886 to 1889. In 1890, he married Lilly Kramer and moved to Munich. At first, he worked as a painter, illustrator and book-binder in a sort of artisanal way. He frequented the bohemian circles and was interested in subjects related to the reform of life-styles. In 1899 Behrens accepted the invitation of the Grand-duke Ernst-Ludwig of Hesse to be the second member of his recently-inaugurated Darmstadt Artists' Colony, where Behrens built his own house and fully conceived everything inside the house (furniture, towels, paintings, pottery, etc.) The building of this house is considered to be the turning point in his life, when he left the artistic circles of Munich and moved away from the Jugendstil towards a sober and austere style of design.