The inner and outer layers are secured together, such as by sewing at {HEAD ~ the toe portion} of {TAIL ~ each} to form the double sock 
of
The inner and outer layers are secured together , such as by sewing at { HEAD ~ the toe portion } of { TAIL ~ each } to form the double sock
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH