Rubber sole Boost midsole Imported Lace closure A young legend. The adidas Ultraboost shoes debuted in 2015, and they became a go-to far beyond the realm of running. For good reason. The adidas Primeknit upper wraps the foot in support, adapting to the changing shape of your foot with each take-off and landing. Plush Boost cushioning returns energy with each stride. The more you give, the more you get. So give it your all. These were made for it.