Curtsey Abstract Colorful Stripes Strapless Dress Size Small?

Curtsey Abstract Colorful Stripes Strapless Dress Size Small? This dress is in excellent used condition but does not have a size or fabric type tag in it anywhere. Could not locate anywhere that a tag would have been cut off. This looks to be a small size. Also, the zipper is YKK. Please see pictures. Any questions please feel free to ask, Thanks for looking!