Patent ID: 8516723

Claim:
An article of footwear comprising: an outsole structure including a forefoot portion, a heel portion, and a midfoot portion disposed between said forefoot portion and said heel portion, said midfoot portion including a body with a base portion, the body defining a periphery, the periphery including a medial edge and a lateral edge, the body also including a first rib and a second rib that project from the base portion, the first rib and the second rib each extending longitudinally between the medial edge and the lateral edge, the first rib, the second rib, and the base portion, cooperating to define a ribless first pocket proximate to a longitudinal axis of the outsole structure, the first rib, the second rib, and the base portion, also cooperating to define a ribless peripheral pocket proximate to one of the medial and lateral edges, the first pocket having a smaller volume than the peripheral pocket.