As discussed below in more detail, such features enable {HEAD ~ a user} to raise or lower {TAIL ~ the rearward section} of the collar with particular ease 
As discussed below in more detail , such features enable { HEAD ~ a user } to raise or lower { TAIL ~ the rearward section } of the collar with particular ease
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH