When measuring, use fabric or vinyl measuring tape and make sure that it is parallel with the ground when you’re taking the measurement. A waist trainer that doesn’t fit will not be comfortable or effective. To properly size a corset, subtract three to four inches from your waist measurement. For example, if your waist measurement is 32, you should consider a size 28 corset.
Ultimately, if you are in between sizes, always size up for the best results.