3-d shoe with ventilation

Abstract

An improved 3-D shoe includes an outsole, an air pad, a midsole and an insole; wherein the outsole has a heel section and a sole section; a first air compartment containing air ducts is formed at the sole section; the midsole is placed above the outsole; the insole is placed above the midsole; the air pad is placed below the insole and above the heel section and provided with an air outlet. The improvement comprises a second air compartment, containing air ducts, being integrally formed at the heel section; a communicating duct being defined between the first air compartment and the second air compartment; and a ventilating hole being provided in one of the air ducts of the second air compartment at a lateral side of the outsole, such that the ambient air can enter the shoe through the ventilating hole to keep the user's foot fully dry.

1 . An improved shoe including an outsole, an air pad, a midsole, and an insole; wherein the outsole has a heel section at rear part thereof and a sole section at front part thereof; a first air compartment containing a plurality of air ducts is integrally formed at the sole section of the outsole; the midsole is placed above the outsole; the insole is placed above the midsole; and the air pad is placed below the insole and above the heel section of the outsole and provided with an air outlet;
 the improvement comprising: a second air compartment, containing a plurality of air ducts, being integrally formed at the heel section of the outsole; a communicating duct defined between the first air compartment and the second air compartment for mutual communication between the first air compartment and the second air compartment and for communicating with the air outlet of the air pad; and a ventilating hole provided in one of the air ducts of the second air compartment for communicating with ambient air.   
     
     
         2 . The improved shoe of  claim 1 , wherein the air ducts of the second air compartment of the outsole section each has a bottom surface which commences halfway between two lateral sides of the outsole and goes down to each lateral side of the outsole; and wherein the ventilating hole is provided in one of the air ducts of the second air compartment at a lateral side of the outsole in flush with the bottom surface. 
     
     
         3 . The improved shoe of  claim 1 , wherein the outsole defines a concaved space at the heel section of the outsole, the concaved space has a shape substantially conforming to the air pad, such that the air pad can be firmly placed over the outsole.