Abstract: A sole is provided with a plurality of buffer elements embedded in the sole at areas bearing most part of pressure applied to the sole by a wearer' foot. Each of the buffer elements includes a non-magnetic housing having a compressible structure, and two permanent magnets vertically oppositely disposed in the housing. Inner sides of the two permanent magnets have the same polarity to produce a magnetic repulsive force between the two magnets to normally expand the compressible housing to its maximum volume. When the housing is subjected to an external pressure, the magnetic repulsive force between the two magnets supports the housing while allowing the same to elastically deform and absorb a reactive force from the ground, so that a buffer effect is obtained.