Women's ADIDASA(R) ULTRA BOOST 19 :: Elevate your running in the new Women's adidas Ultra Boost 19 running shoes. Delivering unbeatable comfort and max energy return, that optimized boost(TM) cushion will definitely get ya moving. Made of stretchy Primeknit 360, your Ultra Boost 19 gives you blissfully irritation-free hold that seamlessly expands throughout your stride.