In the exemplary embodiment of the present invention, an instep strap would be used to increase tension on a cord that would substantially encircle a circumference of an ankle portion of a shoe. In the exemplary embodiment, a first end of the cord would be attached to an instep portion of a first side...http://www.google.es/patents/US7370440?utm_source=gb-gplus-sharePatente US7370440 - Footwear cinch
