A sole insert including: an iridescent film translucent or transparent lined on or in a transparent outer wall of an air-cushioning pad of a sole insert inserted in a shoe sole, and a color sheet covering and combinable with the air-cushioning pad, whereby upon a molding process of the pad with...http://www.google.es/patents/US5815950?utm_source=gb-gplus-sharePatente US5815950 - Air-cushioning sole insert lined with iridescent film
Air-cushioning sole insert lined with iridescent film
