I went by the measurements and am exactly the measurement for the small, but it was at least a size too big, so if you want to try this dress and you meet the small measurements I'd try the XSmall. Second the material is different than what I thought it'd be. It's a lot like the napkin material at nice restaurants. It wasn't what I was expecting. Also the length was a lot longer than I anticipated, well past the knees. I bet the dress is cute if it fits, but I couldn't really tell from how big it was. I could tell that it was sewn really well.