The most important measurement when selecting your perfect waist trainer is, of course, your waist. Using a vinyl measuring tape, measure the narrowest part of your waist, which is typically a couple of inches above your belly button, where there is a natural bend in your torso when you lean to one side. Make sure that the tape is level. It should lie flat on your skin or a very thin tank tap, but it shouldn’t be so tight that you can’t slip a finger underneath.
Once you’ve determined your waist measurement, follow the sizing chart for your garment of choice precisely! Every waist trainer on our site has been carefully curated and tested, and we have adjusted the sizing charts to reflect exactly the way they will fit, based on your measurements. Don’t simply go with your dress size. Also, note that waist trainer number sizes do not correspond exactly with your waist size; instead, they represent what your waist measurement will be while the trainer is tightened.