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 (1) with a securing means in the form of a sleeve (2) for placing around the abdomen, wherein the main body (1) has at least two chamber systems (3, 4) 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 (3, 4) which come to lie on the right-hand side (5) 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 (3, 4) which come to lie on the left-hand side (6) of the body are arranged in a U-shape with downwardly directed arms. This additionally stimulates peristalsis. Two chamber systems (3, 4) alternately acted on by a fluid are sufficient in this case. It is expedient if the inlet sites (10) for the fluid into the chambers are located near the transverse part of the U-shaped chambers, such that the fluid adopts a preferred direction of flow.
