Article of footwear with insertable lightweight interior midsole structure

摘要: An article of footwear includes an upper that at least in part defines interior chamber for receiving a foot; insertable midsole component received within the chamber; and exterior sole structure engaged with upper, wherein includes: (a) (b) optionally outsole extends under forefoot region, is formed from foam material comprising reaction product about 10 to 100 phr hydrogenated or non-hydrogenated acrylonitrile butadiene copolymer, 0 40 modified 90 alpha olefin one additive amount suitable form material; density less than 0.25 g/cm3.