The waist measurements listed are the actual corset size at the waist, not your waist measurement. Our corsets should be up to 4" smaller than your natural waist for beginners or up to 6" smaller for more experienced corset wearers. All corsets should be worn with a small gap at the back.
For example, if you naturally have a 31" waist (79cm), you may fall between sizes L and XL in the waist. Our size L corset has a 27" waist and our size XL corset has a 29" waist. So if you would like up to 4" of waist reduction, choose the size L. If you would prefer a light smoothing effect, without much constriction, then you may prefer the size XL.
Please note that our overbust style corsets are best suited for a B or C cup size. (D cups will generally fit as well, but you may find a little extra cleavage or push-up effect results.) Make sure to consult our size chart to ensure that your bust will also fit into the size corset you've selected. If you have a fuller bustline, you may instead want to choose an underbust style corset and pairing it with a well-fitted bra of your choice.