A shoe embodying a multiple chambered pneumatically inflated insert encapsulated in a yieldable foam which acts as a bridging moderator filling in irregularities of the insert and providing a substantially smooth and contoured surface for supporting the foot in a comfortable manner. The encapsulated...http://www.google.fr/patents/US4219945?utm_source=gb-gplus-shareBrevet US4219945 - Footwear
