Celebrate style. Celebrate innovation. Celebrate adidas running. These juniors' adidas shoes look back to a revolutionary running design from the '80s, bringing heritage colours to the iconic Ultraboost. The adidas PRIMEKNIT upper and responsive BOOST keep you comfortable in your every jump, turn and stride. This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic — reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean. The other 50% of the yarn is recycled polyester.