A flexible shoe insole consisting of strips of narrow bands of wood spaced from each other and fixed to a pliable underlying support. The strips are oriented with the length of the strip being transverse to the longitudinal axis of the foot and the operative connection to the pliable underlying substrate...http://www.google.fr/patents/US4476638?utm_source=gb-gplus-shareBrevet US4476638 - Flexible wooden insole and underlying support
