For reference i am 5'3 121 lbs and i usually wear a size 6 or 8. i got a size small and it was still at bit large. my bf said it was a nice dress to wear around the house ( like a house dress). a bit pricey for that but the way it hangs it does look like a house dress or a bit like a sack. i kept it only because i was looking for casual dresses. i wore it out and got a few compliments ( prob cuz i never wear dresses). good luck.