We purchased 6 items and this was the only one that fit. The other items were Adult Small as well, but fit more like a childs medium or large.
Adult Purple with White Ribbon Leotard
Style No: 3637
The leo fit my Granddaughter great. Sizing was correct. She loves the leo and says it is comfortable to wear, no seams to rub on chest. The quality of the material is good and looks like will hold up well to multiple wearings and washings.