Ventilation insole with air chambers

Abstract

A ventilation insole which includes a bottom air chamber layer and a smooth top cover layer covered over the bottom air chamber layer, the bottom air chamber layer having a plurality of intersected ribs, a plurality of recessed air chambers respectively separated from one another by the intersected ribs and closed by said top cover layer and a plurality of air vents at intersected points of the intersected ribs, the smooth top cover layer having a plurality of air vents respectively disposed in communication with the air vents of the bottom air chamber layer.

Dependencies are inferred from the claim text.