ultraboost blue spirit aq0421 Raw Grey/Carbon/Blue Spirit released 2021 Barely worn Women’s 10, 43 1/2 (a big 10, feels more like a 10.5 or 11) men’s 9.5 or 10 Get that best-ever feeling on every run. Designed for long city runs, these neutral shoes have a breathable knit upper that's made with yarn spun from recycled plastic. Energy-returning cushioning and a flexible outsole work together to give you a smooth ride from touch-down to toe-off. Engineered fit adidas Primeknit upper wraps the foot with an engineered fit for targeted support that enhances movement Endless energy Boost is our most responsive cushioning ever, delivering incredible energy return: The more energy you give, the more you get Good for the oceans This product is created with yarn made in collaboration with Parley for the Oceans. Some of the yarn features Parley Ocean Plastic which is made from recycled waste, intercepted from beaches and coastal communities before it reaches the ocean