adidas 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 shoes were made for it.This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn. No virgin polyester.