Midsole:It utilizes a full React midsole, providing cushioning and energy return suitable for long-distance runs.Outsole:The outsole features rubber in high-impact areas and a rail down the middle with exposed React foam.Upper:The upper is complemented by overlays, contributing to the shoe's premium feel.Stability:While the React Miler 3 has reduced arch support compared to previous versions, it still offers stability, especially during long runs.Cushioning:Designed for comfort over many miles, the React Infinity Run Flyknit 3, part of the same React line, offers generous cushioning for easy-day running.Injury Reduction:The Nike React foam is designed to be responsive and soft, aiming to reduce running-related injuries.