A kosovorotka (Russian: косоворо́тка; [kəsəvɐˈrotkə]) is a Russian, skewed-collared shirt. The word is derived from koso - askew, and vorot collar.
A kosovorotka is a traditional Russian shirt, long sleeved and reaching down to the mid-thigh. The shirt is not buttoned all the way down to the hem, but has several buttons at the collar (unfastened when the garment is pulled over the wearer's head), though these are positioned off to one side (regional styles vary between left and right), instead of centrally, as is customary with a typical Western 20th and 21st century man's shirt. If left unbuttoned the collar appears skewed, which accounts for the garment's name. The collar and sleeves of kosovorotka were often decorated with a traditional Slavic ornament.
The men's garment was worn loose and was not tucked into the trousers, but instead belted either with a conventional belt, a rope, or a rope-like tie. The tails of the garment hung over the trousers. Women's shirts were tucked into the skirt or worn under the sarafan, and the button line of women's shirts tended to be in the middle, rather than off at the side. Children's shirts were often too long for those who wore them, and was the only piece of clothing on little boys and girls in the ancient times.
Generally associated with Russian peasants, the kosovorotka was worn by peasants and townsmen of various social categories into the early 20th century, when it was rapidly displaced as an everyday garment by more efficient and less elaborate clothing after the Bolshevik Revolution of 1917. The garment is also known as a tolstovka, or the Tolstoy-shirt, because the writer Count Leo Tolstoy customarily wore one in his later years. Since the late 20th century kosovorotkas appear mostly as souvenirs and as scenic garments of Russian folk music, song and dance ensembles. The kosovorotka is also seen worn by Omar Sharif as Yuri Zhivago in David Lean's 1965 film Doctor Zhivago.