Generally, I'm between a size 8-12 (my proportions are not the "norm") and wear between a M to Large in skirts, small to medium in tops and I must say, for how pretty the pattern was, I was so sad to see it didn't fit me! I am definitely over the large they had, so that was my fault. However I'm certain my sisters will love the swimsuit so it'll probably be a hand-me-down. You can tell that they fit my top (barely, I moved my sleeves down to cover my whole boobs) and the bottom had my butt crack showing, so that was a no go. Check the sizing before you buy! When they decide to make larger suits, I'll definitely buy cuz I LOVED the pattern!!