Purple-Purple Trim Ruffle Lace up Overbust Corset and Sexy Mini Tutu Skirt Corset are sized by waist size,so the waist measurement is the most important thing when sizing for a corset.Please use our size guide located on the left of the product image, do not use the Amazon size guide. Party/Wedding/Show/Clubwear Corset top Imported The string on the back is adjustable, please try to adjust it to be more fit for your body.Wash by hand