A device that permits slimming by improving blood flow in the skin, with movement by endurance training devices in the fat-burning pulse, with a main body with an attachment in the form of a sleeve for placing around the abdomen, wherein the main body has at least two chamber systems that can be acted on independently by a fluid, is improved by the fact that at least one and preferably two to four chambers of the chamber systems which come to lie on the right-hand side of the body are arranged in a U-shape with upwardly directed arms, whereas at least one and preferably two to four chambers of the chamber systems which come to lie on the left-hand side of the body are arranged in a U-shape with downwardly directed arms. This additionally stimulates peristalsis.
