US Patent 9167867 Article of footwear with multi-part sole assembly

An article of footwear includes an upper, a midsole beneath the upper, and an outsole beneath the midsole. The midsole includes a substantially U-shaped outer member defining a pair of forwardly extending arms spaced from one another and formed of a first material. An inner member is positioned between the arms of the outer member and is formed of a second material that is more resilient than the first material.