My measurements: 5 foot 6 inches, about 160 pounds, b cup Dress has stretch. Good fit for bottom half, just too big atop & around the waist. Don't order dresses a lot, but I feel like if you're like me (small chested, but w a butt and thighs, structured type dresses like this may give u a hard time.) I MAY have been able to get a Large, but it still was kinda tight squeeze getting over my butt. If I was one to..I'd get it altered.