A shoe insert that can be customized by the user to control pronation of the foot and to relieve or reduce stress at painful areas of the foot comprising a film of plastic capable of being deformed to the shape of the foot by the weight of the user. The film includes fastening hook or loop material...http://www.google.es/patents/US5799414?utm_source=gb-gplus-sharePatente US5799414 - Shoe insert with non-compressible deformable base attached to resilient pads
Shoe insert with non-compressible deformable base attached to resilient pads ...