The first or lower layer of the sole is a pad formed of an elastomeric material which contains a liquid within {HEAD ~ a set} of {TAIL ~ chambers}, one in the heel area and one in the toe area of the sole 
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The first or lower layer of the sole is a pad formed of an elastomeric material which contains a liquid within { HEAD ~ a set } of { TAIL ~ chambers } , one in the heel area and one in the toe area of the sole
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 REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH