Abstract: A method of producing a flexible conduit whose dimensions and shape can easily be changed according to its use is described. The method includes producing elongate elements from an elastic flexible material, wherein the cross-section of the elongate elements each have at least one corrugation and extend so as to be rectilinear longitudinally. Each elongate element is fixed to at least one elongate holding element made of rigid pliable material so as to keep its shape after bending. Several sets of elongate elements are produced and are connected to each other along their adjacent longitudinal edges in order to form a flat enclosure whose dimensions correspond to those of the deployed flexible conduit. The flat enclosure is then deformed so as to close it and to obtain the required shape of the cross-section of the conduit, wherein the enclosure is kept in shape by the deformation of the elongate holding elements. Then, the adjacent ends of the shaped enclosure are connected.