Stability layer with vertical support wall for use with footwear

A midsole for footwear, comprising:

• a base including a heel region, a midfoot region, and a toe region, the heel region including an upper surface with an elongated recess therein, the elongated recess extending between the midfoot region and a heel edge of the heel region;
• and
• a stability layer including:
• a support with:
• an upper surface having a concave shape;
• a bottom surface opposite from the upper surface;
• an interior portion conformable to a shape of a heel of an individual;
• and
• an outer periphery including:
• a heel edge;
• a front edge opposite from the heel edge;
• a medial edge extending between a medial end of the heel edge and a medial end of the front edge;
• and
• a lateral edge extending between a lateral end of the heel edge and a lateral end of the front edge;
• and
• a wall extending from the lower surface and including:
• a lateral wall adjacent to the lateral edge of the support;
• and
• a medial wall adjacent to the medial edge of the support,
• the wall having sufficient rigidity to maintain an elevation of the outer periphery of the support as a force is applied to the upper surface of the support,
• the lateral wall and the medial wall being spaced apart from each other a sufficient distance to enable the interior portion of the support to flex downwardly between the lateral wall and the medial wall as the force is applied to the upper surface of the support.