Shoe

Abstract

A shoe having an upper and a curved sole member, the sole member may be comprised of one unitary piece or a separate midsole and a separate outsole. The curvature results from the sole member tilting along a center of mass axis that extends through a point in the vicinity of the lateral side of the heel region of the sole member to a point in the vicinity of the medial side of forefoot region of the sole member. The center of mass axis runs diagonally along the entire length of the shoe. Due to the curvature, the sole member has a non-uniform thickness. The curvature of the sole member allows the user's foot to be guided in a more natural motion providing more movement efficiency and comfort.

1 . A shoe having an upper and a sole member, wherein said sole member comprises:
 a front tip, a rear tip, a forefoot region, a middle region, a heel region, a lateral side and medial side, wherein said sole member has a curvature that extends along a center of mass axis from a point at the lateral side of the heel region to a point at the medial side of the forefoot region.   
     
     
         2 . The shoe of  claim 1  wherein said center of mass axis intersects a longitudinal axis extending from the front tip to the heel region at an angle between about 1 and about 27 degrees. 
     
     
         3 . The shoe of  claim 1  wherein the forefoot region of said sole member has a curvature extending from said middle region to the medial side of the forefoot region along said center of mass axis. 
     
     
         4 . The shoe of  claim 1  wherein the heel region of said sole member has a curvature extending from said middle region to the lateral side of the heel region along said center of mass axis. 
     
     
         5 . The shoe of  claim 1  wherein the sole member is substantially one unitary piece. 
     
     
         6 . The shoe of  claim 1  wherein the sole member is comprised of a separate midsole and a separate outsole. 
     
     
         7 . The shoe of  claim 1  wherein the sole member has a plurality of incisions that create a plurality of individual portions of the sole member. 
     
     
         8 . A shoe having an upper and a sole member, wherein said sole member comprises:
 a front tip, a rear tip, a forefoot region, a middle region, a heel region, a lateral side and medial side, wherein said sole member has a curvature along a center of mass axis from a point at the lateral side of the heel region to a point at the medial side of the forefoot region, wherein said center of mass axis intersects a longitudinal axis extending from the front tip to the heel region at an angle of between about 1 and about 27 degrees, wherein said sole member has a varying thickness due to said curvature.   
     
     
         9 . The shoe of  claim 8  wherein the forefoot region of said sole member has a curvature extending from said middle region to the medial side of the forefoot region along said center of mass axis. 
     
     
         10 . The shoe of  claim 8  wherein the heel region of said sole member has a curvature extending from said middle region to the lateral side of the heel region along said center of mass axis. 
     
     
         11 . The shoe of  claim 8  wherein the sole member is substantially one unitary piece. 
     
     
         12 . The shoe of  claim 8  wherein the sole member is comprised of a separate midsole and a separate outsole. 
     
     
         13 . The shoe of  claim 8  wherein the sole member has a plurality of incisions. 
     
     
         14 . A shoe having an upper and a sole member, wherein said sole member comprises:
 a front tip, a rear tip, forefoot region, a middle region, a heel region, a lateral side and medial side, wherein said sole member has a curvature that runs along a center of mass axis from a point at the lateral side of the heel region to a point at the medial side of the forefoot region, wherein said sole member has a plurality of incisions.   
     
     
         15 . The shoe of  claim 14  wherein said center of mass axis intersects a longitudinal axis extending from the front tip to the heel region at an angle of between about 1 and about 27 degrees in a substantially horizontal plane with respect to the ground. 
     
     
         16 . The shoe of  claim 14  wherein the forefoot region of said sole member has a curvature extending from said middle region to the medial side of the forefoot region along said center of mass axis. 
     
     
         17 . The shoe of  claim 14  wherein the heel region of said sole member has a curvature extending from said middle region to the lateral side of the heel region along said center of mass axis. 
     
     
         18 . The shoe of  claim 14  wherein the sole member is substantially one unitary piece. 
     
     
         19 . The shoe of  claim 14  wherein the sole member is comprised of a separate midsole and a separate outsole.