CPC A43B 13/188 (2013.01) [A43B 7/1425 (2013.01); A43B 7/1435 (2013.01); A43B 7/144 (2013.01); A43B 7/1445 (2013.01); A43B 7/148 (2013.01); A43B 13/125 (2013.01); A43B 13/127 (2013.01); A43B 13/187 (2013.01)] | 12 Claims |
1. A sole with a midsole, wherein the midsole is formed from particles of an expanded material; wherein the particles of an expanded material comprise expanded polypropylene (ePP), expanded polyamide (ePA), expanded polyether-block amine (ePEBA), expanded thermos-plastic polyurethane (eTPU), or combinations thereof;
wherein a portion of the midsole further comprises:
a first sole region comprising particle foam comprising particles of an expanded material; wherein the particles of an expanded material comprise expanded polypropylene (ePP), expanded polyamide (ePA), expanded polyether-block amine (ePEBA), expanded thermos-plastic polyurethane (eTPU), or combinations thereof;
a control element positioned proximate the first sole region; wherein the control element is free from particles of the particle foam and is formed of ethylene vinyl acetate (EVA), polypropylene (PP), polyamide (PA), thermoplastic polyurethane (TPU), polyether-block amine (PEBA), and combinations thereof; and
a deformation region comprising an open space, wherein the deformation region is positioned proximate and sideward to the first sole region and the control element, wherein the deformation region comprises a volume greater than that of a single expanded particle in the particle foam and is configured to allow deformation of the particle foam into the deformation region in a sideward direction under a pressure load on the sole along a vertical direction.
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