@ An insole the material for which is made a certain kind of silicone rubber compound showing the gum-like elasticity underthe normal temperature, which equally includes minute foams, and which is provided with a wedge-shapedly one-sided thickness, irregularities, curves, and the like for the purpose of making the sole incline or rectifying the state of unevenness thereof. It is used by being inserted inside shoes, slippers, sandals, etc., or by being loaded on the sole with the aid of socks, simple holders or band bodies being molded integrally with the holders. Further, it is made sometimes by boring small holes for air permeation therein.