Patent ID: 8146272
Filing Date: 2012-04-03
Classification: A43B

Abstract:
1. An article of footwear, comprising: an upper forming a void into which a foot of a wearer is inserted; a sole structure connected to the upper and including a midsole, and an outsole, the outsole connected to the midsole and including a first plurality of grooves formed in the outsole and extending angularly across the outsole to form a plurality of diamond shaped discrete lugs, the grooves extend upward, into the sole structure a first depth at a perimeter of the outsole and a second depth at a center of the outsole, at least one groove of the plurality of grooves gradually increasing in depth from the first depth to the second depth as the at least one groove extends from a lateral side of the article of footwear toward the center of the outsole and gradually decreasing in depth from the second depth to the first depth as the at least one groove extends from the center of the outsole toward a medial side of the article of footwear.