SELECTING YOUR SIZE
When choosing the perfect size of a waist trainer, it is best to start with a larger size that fits you then train your waist down to smaller ones. Never select a size that you prefer instead of ones that actually fit. There is no point in getting a waist trainer that does not fit at all. If you force yourself wearing a tight waist trainer, you might end up causing harm than good. Plus, it would feel very uncomfortable, forcing you to get rid of it instead. It is always best to listen to your body.
MEASURING YOUR WAIST
Find the top of your hip boneFind the bottom of your ribsPlace a tape measure in between these two areas and wrap it around your waist. It is best to use a cloth measuring tape as it can move around your body easier and more conveniently compared to a hard measure tool. When measuring your waist, make sure that it is not too loose or too tight.
In case you do not have a flexible measuring tool available, you can also place a string around your waist. Use the string to wrap around your waist and then mark the string. Then, place the string against the hard measuring tool to know the exact size of your waist.