Most of us will wonder what Sauna belts are? Sauna belts are the broad type of fabric band which is around the stomach area. Most commonly sauna belts are self-heated bands with a push-button. The sole purpose of sauna belts is to encourage the body to sweat. They are strapped around mid-section area to help reduce fat levels and increase sweat. It makes sweat around your stomach area. The purpose of sauna belts is to lock the heat within the belt and increase perspiration which in turn flushes out the toxins and impurities out of the skin, pulls out retained water within the tissues to promote weight loss by reducing water weight. But the sauna band is more than just a way to lose weight. It may actually have other health benefits. For example, it is also used for sore muscles to get rid of the pain.