For race day and every day. These adidas running shoes are made to withstand a full training cycle, from the first warm up through the final kick across the finish. Lightstrike Pro+ cushioning give a resilient midsole that maintains energy over long distance. Carbon-infused ENERYGRODS deliver an anatomically driven transition that limits energy loss at toe-off. This product is made with Primegreen, a series of high-performance recycled materials. 50% of upper is recycled content. No virgin polyester.