Preferably, {HEAD ~ the inner core} is comprised of an ethylene vinyl acetate copolymer, an ethylene carboxylic acid copolymer or {TAIL ~ a blend} of both 
Preferably , { HEAD ~ the inner core } is comprised of an ethylene vinyl acetate copolymer , an ethylene carboxylic acid copolymer or { TAIL ~ a blend } of both
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH