Optimized for speed When it comes to achieving your goals, every second counts. From training to race day, powerful performances call for high-tech gear that's optimized for speed. Meet the latest range of lightweight running staples that help you to push beyond your limits without distraction. The Adizero SL Running Shoes hand-pick the best from our world record-breaking Adizero franchise. The lightweight Lightstrike EVA midsole delivers resilience to the midsole construction, so you can focus on the next stride. The upper is made of a soft, engineered mesh that's zoned in key areas. A padded heel and tongue provides optimal comfort alongside the Adizero heel-blinker. The premium outsole is crafted to provide traction. Change Materials By choosing recycled, we are able to reuse materials that have already been created, which helps to reduce waste and our reliance on finite resources.