Boost your energy with every stride when you run in the multicolour Ultra Boost sneakers from Adidas by Stella McCartney. Constructed using Adidas Boost technology for responsive cushioning, these sneakers deliver superior comfort for a superior performance. The moulded outer cage and heel counter offer extra support, while contrasting patterned panels give these shoes a touch of Stella McCartney feminine flair. This item fits small, please select half a size up.