each hole 3 extending up to leather layer 1 or as shown in fig3 ending shortly before it in an optional number of these holes 3 and recesses 4 knobs 5 of an atoxic elastically deformable material may be fixed having an enlarged foot 6 a cylindric shaft 7 and a rounded head 8 see fig3 the shape of foot 6 is exactly adapted to that of the recesses 4 and the diameter of shaft 7 is equivalent to or slightly larger than the diameter of holes 3 due to this shape each knob 5 may be pressed by hand from below into a recess 4 its shaft 7 going into the relevant hole 3 in press fit and its head 8 protruding to a predetermined degree over the sole surface as can be seen in fig2 the sole bottom side is subdivided by imprinted or raised lines 9 in a variety of different areas opposing the known reflex zones on the foot sole of the wearer the individual reflex zone areas may be marked e g by numbers letters or other symbols and on a free surface of the sole upper or bottom side the relevant body organs may be designated in fig1 and 2 it can be seen that in certain reflex zone areas which can be chosen freely.