This dress is fantastic!! It's perfect washed out navy color, perfect floral pattern, perfect mix of casual and cute, just perfect! Fits loose with a lot of room for flowy! Use length as a size guide compared to your normal size. I am 6 foot tall wearing a small, I should have worn the medium, and the wind was blowing so hard you would have thought a tornado was touching down! Armpit to armpit small measures 20.5 inches, medium 21.5 inches, large 22.5 inches