I bought this in white and black, same size S. White fit but the black obviously was an XS. I emailed customer service 3 times to let them know that it was coming undone in the back and the sizing issue right when I received it but they never responded :( I'm 5'3, 126lbs, 34B and usually wear size 3 jeans, small in shirts, and it fit good. Skirt just a little tight at the waist band but I like it like that so it shapes me. Wish they would of exchanged it for me.