I ordered my usual size 6 from retailer and it fit perfect. for reference i am 5'8" and 137 pounds. unlike the other reviewer i did not have trouble getting into or out of dress. it buttons down the middle so you just need to make sure you undo them enough to get past your chest;) i really like this dress. i think it's beautifully made. is it my favorite dress i've purchased from retailer, no but still a nice dress:)