Absolutely stunning vintage dress. It has a built-in crinoline to give it the fullness in the hips look.
Metal zipper in back. No label. Not sure what the fabric is. It’s a stiffer fabric, perhaps a taffeta but not super shiny like a satin.
Dress is XS. Here are the measurements taken lying flat:
Armpit to armpit 16 to 16.5 inches darts allow for some extra space.
waist 11 1/2 inches
Hips free
Length 58 inches.
This dress is in very good vintage condition. There is a little stain near the bottom and a tiny bit of dirt under the hem inside that didn't come out when dry cleaned. You can't see the dirt because it is on the inside when worn. Please see close ups Other than this it looks great. Dress has been recently dry cleaned and is ready to wear.

Very Good condition, size XS (000 - 2).

Detailed measurements:

Bust - 32 inches
Waist - 23 inches
Shoulder - 15 inches
Body Length - 58 inches

This item is sold from a vintage boutique in Ames, IA.