Abstract: A prosthetic lower leg or prosthesis comprising two plates mutually connected downwardly and to a prosthetic foot, while upwards they are enlarged into circular coacting sleeve halves, together forming an adjustable carrying sleeve. By means of an annular tensioning device the sleeve can be tightened round the leg stump which can be fixed laterally in the prosthesis by special tension straps between the plates, as well as longitudinally relative to the prosthesis by means of a strap which is attached to the carrying sleeve and tightenably laid round the leg stump in a loop. The weight on the leg stump is substantially transferred to the prosthesis via bands attached to the outside of a stocking on the stump and extend up over the edge of the carrying sleeve and from there down on the outside of the sleeve where the free ends of the bands are anchored.