Patent ID: 6701643
Filing Date: 2004-03-09
Classification: A43B

Abstract:
A footwear structure comprising:an outsole comprising at least one stretch zone and at least first and second zones, said stretch zone being disposed between said first and second anchor zones for allowing widthwise expansion and contraction of said outsole corresponding to expansion and contraction of a user's foot during wear; an upper secured to a top surface of said outsole and at least partially defining a cavity, said upper comprising at least one upper stretch zone and at least first and second upper anchor zones, said upper stretch zone being disposed between said first and second upper anchor zones for allowing expansion of said upper during wear by a user; and a midsole at least partially disposed within said cavity, said midsole comprising a first region extending across the entire width of said midsole and having first level of rigidity and a second region extending across the entire width of said midsole and having a second level of rigidity, said first level of rigidity being different from said second level of rigidity.