A visco-elastic polymer liner and sleeve for prosthetic devices utilize the liner for donning over a residual limb and fitting within the socket of an artificial limb. The sleeve is rolled on over the top of the artificial limb and onto the amputee's remaining stump. The liner is shaped to have its cavity formed with a volume and shape less than a volume and shape of the residual limb for both tension and tissue configuration relief while the liner has an outer surface formed with a volume and shape greater than the volume and shape of the artificial limb socket for relief of certain tissue configurations and to create weight bearing, relief and compression areas on and in the liner to absorb and dissipate shock, shear and mechanical forces through the liner otherwise transmitted to the residual limb. The sleeve is shaped like a tube.