ULTRABOOST SHOES FOR EVERYDAY COMFORT. A young legend. The adidas Ultraboost debuted in 2015, and it became a go-to far beyond the realm of running. These shoes have a soft knit upper that offers ventilation where you need it most. They ride on our original tooling, with a Boost midsole for comfort you need to feel to believe. Highlights: PRIMEBLUE - This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic. CAN'T STOP. WON'T STOP - The incredible energy return of adidas Boost is created by fusing together energy capsules, giving you the power to keep your feet moving. ADIDAS PRIMEKNIT - Precision-made, seamless zones combine strength and performance with smooth comfort to ensure distraction-free movement. ULTRABOOST DNA - Ultraboost DNA carries the genetic information of one of our most popular performance runners, but it's born for the street. Specifications: Sock-like fit Lace closure adidas Primeknit upper Lightweight feel Midfoot cage and supportive heel counter Boost midsole Weight: 11 ounces (size 9) Midsole drop: 10 mm (heel: 22 mm / forefoot: 12 mm) Continental(TM) Rubber Primeblue Imported