The second yarn 24 comprises a core 34 of elastic material such as rubber which is helically wrapped with {HEAD ~ an inner covering} 36 defined by {TAIL ~ a fiber} or filament such as polyester 
defined by
The second yarn 24 comprises a core 34 of elastic material such as rubber which is helically wrapped with { HEAD ~ an inner covering } 36 defined by { TAIL ~ a fiber } or filament such as polyester
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 HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH