Darby & Darby
Insole
 An insole the material for which is made from a elastomer showing gum-like elasticity under the normal temperature, and which is provided with a wedge-shaped profile, irregularities, curves, and the like for the purpose of making the sole incline or correcting the state of unevenness thereof. It is used by being inserted inside shoes, slippers, sandals, etc., or by being worn on the sole of the foot with the aid of socks, simple holders or band bodies being molded integrally with the holders. Further, it may be made by utilizing a foam-formed body, or by boring small holes for air permeation therein for retaining warmth or making it light-weight. 
A
A61F
inventional
Tetsuya Toshiro
Watanabe Nakamura