adidas Ultra Boost 23 by Stella Mccartney Clear Onix White Women's Shoes Size 8.5 Brand new with box From quick lunchtime miles to your next 10K, the Ultraboost is a responsive ride for city runners. These adidas by Stella McCartney shoes infuse extra style into the race-day favorite, perfect for those days when a morning run turns into breakfast with your workout partner. The adidas PRIMEKNIT upper is engineered with mesh inserts for a breezy feel. It's set on our lightest BOOST ever for even more energy return with every step. Clear Onix / Clear Onix / Cloud White IE8721