Size small. I could have used an XS, I have plenty of room. I’m 5’6” wore 4” heels and was still stepping on the bottom (please see photos). Beyond the wear at the back bottom hem (from me stepping on the back of the dress), this dress is in great condition. This dress could even be hemmed and you’d never know there was wear. Price is reflecting of this. Worn only for one Holiday Party. Great dress. Very comfortable fabric.