To arrange an inner material having a function as a ventilation path and a conductive path between the outsole material and the insole material of a shoe.

This inner material 2 provided with the ventilation path 2c and the conductive path capable of discharging static electricity to the outside of the shoe is arranged between the outsole material 1 and the insole material 3 of a shoe sole, at least the peripheral edge projected line 2a of the inner material 2 is adhered and fixed to the insole material 3 by an adhesive material having electrical conductivity, and further, the inner material 2 is fixed to the outsole material 1 having electrical conductivity. Thus, heat filled inside the shoe is surely radiated to the outside of the shoe through the inner material and the static electricity is surely discharged to the outside of the shoe.