Instructions: Wrap the belt around your diaphragm so that it sits midway between your navel and your chest. Tighten or loosen the straps on each side of the belt to achieve the optimum resistance to your breathing. If you feel no air hunger, then tighten the straps until a tolerable air hunger is achieved. Conversely, if the air hunger is uncomfortable, then loosen the straps to achieve the optimum air hunger.
Belt Sizes: There are currently 3 belt sizes available (Small, Medium and Large). To choose your belt size, please measure the girth of your midriff (at the base of the ribcage). Please then match this measurement to one of the sizes below.