Happy feet are a must whether you're a sprinter or a shoe lover. Made from recycled Parley Ocean Plastic, the adidas Ultraboost 21 provides long-lasting comfort and elevates your performance with each stride. The rubber outsole provides superior grip while the temperature-independent cushioning is built to beat the elements. The rubber outsole offers traction on all surfaces. Made with Primeblue, a high-performance recycled material.