Sole-and-heel structure having premolded bulges

Details Sole-and-heel structure having premolded bulges Sole-and-heel structure having premolded bulges

A - Human Necessities

43

B

36/80

A43B 13/20 (2006.01)

Patent

CA 1230225

ABSTRACT In one embodiment, the sole-and-heel struc- ture includes an outer member having a sole portion and a heel portion. A bulge is molded into the heel portion and a bulge is molded into the sole portion in the metatarsal region thereof. A thin sealing member is attached to the outer member with adhesive to hermetically seal the cavities defined by the two bulges. A passageway between the two cavities enables air to move back and forth during movement of a person wearing shoes incorporating such sole-and-heel struc- ture.

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