Blouses are historically a cask style, mostly mail-like garment, that were rarely part of the fashionable woman's wardrobe until the 1890s. Before that time, they were occasionally popular for informal wear in styles that echoed peasant or traditional clothing, such as the Garibaldi shirt of the 1860s.

What did popular shirts look like in the 1920s?

These were common throughout the 1920s. The shirt-blouse could be a pullover style as well, some with large round collars or scoop necks like the earlier years. Blouse colors favored white, neutral tans, peach, blue, and black in English broadcloth cotton.

When did Shirtwaists go out of style?

And so the shirtwaist fell out of fashion as style changed. Of course, women still wore skirts and blouses, but the language or nomenclature changed too. The term shirtwaist was used until the 1920s. Afterwards the more common term used was blouse or shirt.