vintage slip dress La Perla (IT 42 / M / US 6) – Ciao Kasia designed to move with the body rather than against it Incredible 1940's Black Sheer Lace
Description
Not sure about this one

Im a 55 size 6 and got the medium
And, because Amazon has ~literally~ everything (making it one of the best websites to shop for prom), you can try a range of different styles, (think: a gothic black fit that Wednesday would be proud of, or a frilly cottagecore number, to name a few aesthetics)

- Model is wearing size S

Brand = Saloni