The subject of the invention is a corrugation bellows of a transfer between two vehicles which are articulated together, comprising a plurality of corrugations which are U-shaped in cross-section, wherein two adjacent corrugations are connected together by a frame, wherein the corrugation of U-shaped cross-section has two limbs as well as a web connecting the limbs, wherein the material thickness of the web is greater than the material thickness of the limbs, wherein the material of web and limbs is identical and wherein the web is of substantially planar construction so that the limbs and the web extend at right angles to one another in a substantially neutral setting of the bellows.