When the streets first saw the adidas Ultraboost in 2015, the sneaker world was set on fire. Fast forward to 2020, adidas comes correct to elevate the upper and put it on top of a 3D-printed midsole. The dense midsole provides more stability and support to take your running experience to extra heights. This is the future of running and you feel it in every step. adidas Primeknit textile upper. 4D midsole. Continental Rubber outsole. | adidas Men's Ultra 4D 5.