Ready For Tomorrow Step into the future with confidence in the adidas 4D Fusio. The digitally printed adidas 4D midsole ensures controlled energy return, while the upper is crafted using adidas’ Primeknit innovation which wraps around the foot like a sock to give you a light and airy feel. Lace into these running-inspired shoes and take on whatever tomorrow has in store. adidas 4D Fusio Features: Primeknit textile upper Lace closure with heel pull 4D midsole made with light, oxygen, and liquid resin Rubber outsole