x and made of profiled metal strip which is spiral wound for interlocking the turns tubes of this type are used as liner for conveying exhaust gases in decoupling elements of exhaust systems and can be received in gas tight metal bellows to prevent turbulence in the exhaust flow and to enhance acoustic properties of the decoupling element the tube 31 has an s shaped profile which is extended by an end leg 11 in the fragmentary view of fig1 four neighboring turns are shown of the tube 31 which has end legs 11 that are positioned radially inwards the tube 31 is hereby shown compressed in the right hand drawing side and stretched in the left hand drawing side the end leg 11 has an axial extent which is preferably about half the length of the s shaped profile and is situated radially below the next tube turn as shown in fig1 the single s shaped tube layers are hereby interlocked the end leg 11 below the next tube layer provides mutual stability for the single tube layers and significantly reduces noise of the metal tube caused by rattling this reduction is partly realized by the stabilizing effect of the end leg 11 moreover the presence of the end leg 11 enhances the flow of exhaust gases and allows production of directionally stable and at the same time flexible tubes of very thin strip thicknesses a tube according to the invention further achieves greater stretch values so that shorter decoupling elements can be used stretch values of at least 47 up to 77 can be realized as a result the multilayer tube.