A vintage early 1940s, possibly late 1930s, swimsuit/playsuit with an open back with ties. The blue and white striped satin fabric feels like rayon lastex. The suit has a knit lining.
Size: s/m to medium
Bust: this is difficult to measure because of the open back; shown unpinned on my 36.5" dress form. This is the smallest I would go with the bust, but I think it would well for up to 38-39"
Waist (knit measurement--the exterior layer has a lot of drape): 24-32"
Hip (knit measurement--the exterior layer has a lot of drape): 29-40"
Condition: Very good to good. A few wear marks to fabric--a few on strap and a few on right hip. They are noticeable but don't jump out at you because of location.