The best innovations in adidas running went into the creation of these racing shoes. Designed to help you PR on race day, they have a lightweight Celermesh 2.0 upper that's made with recycled materials. The Lightstrike Pro midsole supports explosive movement and delivers optimal energy return. The outsole features Continental™ Rubber under the forefoot. These shoes have been approved by World Athletics under the new guidelines. This product is made with Primegreen, a series of high-performance recycled materials.