a male core component 9 and a female component 10 and annular space 11 when the two components are mounted together the knitted sock 2 is inverted prior to being mounted over the male component 9 the male component is then inserted into the female component and the system is sealed and ready for insertion of molten gel into space 11 between the two components as the gel is inserted it is adhered to the inner surface now facing outward of the fabric layer distal and proximal portions 4 and 5 without any bleed through to the outer surface now facing inward of these portions however as the molten gel reaches the intermediate portion 7 it freely extrudes through the fabric interstices to the outer surface thereby encompassing the intermediate fabric portion as discussed above if the temperature at which the fibers of the intermediate fabric portion 7 melt is less than the temperature of the molten gel the fibers will melt and blend with the gel if the temperature at which the fibers of the intermediate fabric portion 7 melt is greater than the temperature of the molten gel the fibers will be maintained and be embedded within the gel thus after the intermediate fabric portion is engulfed with the molten gel the fibers will either melt and blend with the molten gel or be embedded therein to form a substantially constriction free seal 12 when the molded liner is cooled and removed from the molding machine it is reverted to have the fabric covered portions facing outward as shown in fig1 or 2 the resulting seal 12 has an outer surface coextensive with the outer surfaces of the proximal and distal fabric portions 4 and 5 however the outer.