Laces are secured through a shoe by a plurality of guides and indentations along the ankle portion of the shoe to tighten and take up slack of a shoelace which includes mating material attached to the ends and which is secured to a shoe by mating surfaces formed of interlocking bristle-like material,...http://www.google.es/patents/US5349764?utm_source=gb-gplus-sharePatente US5349764 - Shoe securement apparatus
