Footwear sole with air chambers defined therein and a method for making the same

摘要

A footwear sole includes a single foamable material that has air chambers defined in the footwear sole. The sole is formed in a cavity of a mold and the air chambers are defined by removing movable members in the cavity when the foaming process comes to a final stage so that a layer of the foam material is peeled with the movable members to define air chambers in the sole.