In {TAIL ~ some embodiments}, {HEAD ~ the cover} may be particularly configured about the core to form the cuff 
In
In { TAIL ~ some embodiments } , { HEAD ~ the cover } may be particularly configured about the core to form the cuff
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH