Anvoro Women's Jacquard Bar Steel Straps Waist Bone Overbust Corset Vest Snap On closure Don't use default Amazon Size Chart. Choose size mainly based on your waistline measurement. The correct corset size should be 3"-4" inches smaller than your natural waistline. For example, for 30" inches wearer's natural waistline, Corset 26"(fit Natural Waist 28-30 inches) fits best for TIGHT LACING.. Anvoro owns its own trademarks.Trademark number:86522173. The package contains Anvoro Tag Price is for one set, including 1 corset & 1 thong panties you can click (Anvoro) to view the other style or color The string on the back is adjustable,please see the picture "How to Wear Corset" located on the left of the product image. please try to adjust it to be more fit for your body.