I do not know the sizing but I took measurements when laying flat and they correlate to a large. This is a good condition dress. Fitted at the waist with a sweetheart neckline. Be mine flares out just above your natural waist. Stripes are a dark navy. 97% cotton 3% spandex Chest 18.5” Waist 15” Waist to bottom hem 25.5” Top to bottom 41”