Blue/white polka dot day romper

This is so cute!! Perfect for over a swimsuit or just beach time too. I just never wear it. It's labeled a size Medium but I would definitely say it runs small. For reference, I modeled it in the end photos, I'm 5'4, 120 lbs & a size 4 pants. It comes up pretty short on my legs. The material is dense, cloth-y, with zero stretch to it, just a disclaimer. See measurements. Zips up, ties in back (open back). In lovely condition.