Never worn - new without tags Dress says it's one size Measurements are: Pit to Pit is 19 inches. Length is 52 inches at the longest point. Straps adjust another 4 inches or so each way, so it can be shorter or longer. Ties at the back. Super Flattering A-Line! **It looks like one side might be slightly longer than the other, but it has a flowy design on the bottom, so it may just be the design.