The crotch portion 10 includes {HEAD ~ a pair} of convergent side edges 12 and 14, and {TAIL ~ an elongated securing edge} 16 which extends between, and intersects the side edges 12 and 14 
The crotch portion 10 includes { HEAD ~ a pair } of convergent side edges 12 and 14 , and { TAIL ~ an elongated securing edge } 16 which extends between , and intersects the side edges 12 and 14
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH