The idea was to have the entire upper, mid, and outsole made from a single cast, and bringing the concept into fruition was one of the biggest challenges in the history of Nike. But, after a host of issues that blocked the progress, the Air Foamposite 1 was born, and the footwear game was changed forever. rubber outsole Foamposite upper Ice bottom 314996-401 Style Number: 314996-401 Condition: New