Running is a transformative experience — whether that's a different outlook, lighter mood or faster PB. Similarly, the Ultraboost is a shoe that lives for progression. The fashion-forward adidas by Stella McCartney Ultraboost Light Shoes ride on a new generation of adidas BOOST — adidas' lightest BOOST ever with even more energy return. The adidas PRIMEKNIT upper wraps the foot with a supportive fit that enhances movement. Wear them for short-to-medium-distance kilometers in the city.