Material: Nylon, Spandex, Polyester
Sizes can vary from 2-3 centimeters because they are measured by hand. 1inch=2.54cm The size matched on a label can differ from the one you have ordered
When in doubt between 2 sizes, choose the larger one, so you will have more comfort.
To check your measurements, use a tape measure around your body according to the position indicated in the image.