A heel includes a member with a first surface having a fastening layer for removable attachment of the member to an outsole in two different positions, and a second surface having {HEAD ~ an outer layer} with a first sliding characteristic in one position and {TAIL ~ a different sliding characteristic} in another position 
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A heel includes a member with a first surface having a fastening layer for removable attachment of the member to an outsole in two different positions , and a second surface having { HEAD ~ an outer layer } with a first sliding characteristic in one position and { TAIL ~ a different sliding characteristic } in another position
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH