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