{HEAD ~ The main body portion} of {TAIL ~ the strap} is disposed between the two end portions and includes an elongateable linearly extending elastic main body portion 
of
{ HEAD ~ The main body portion } of { TAIL ~ the strap } is disposed between the two end portions and includes an elongateable linearly extending elastic main body portion
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH