Check out this incredibly rare 1920s teddy currently on auction from NancyRomancy . This vintage beauty is in a lovely silk knit (probably a jersey). Fabulous Flapper Style. It's hard to imagine how revolutionary it was for women to have freedom of movement!
Also see this photo from Harpers Magazine dated 1928 of a dancer wearing what appears to be the same design courtesy of GlamourSplash's Blog There are some really amazing photos of 1920s ballerinas wearing Van Raalte Singlettes in this post so make sure you check this out!'
1937 Stryps Girdle Singlette from Forgetmenot3