Nike Epic React was the first trainer for which the React technology in the sole was used. React Foam is softer than EVA and gives the sole more cushioning and energy returns. React foam is even 13% more resilient than its predecessor Lunarlon and responds with even more cushioning to a shock. The Flyknit upper easily forms to the shape of the foot and provides support, flexibility and ventilation. Another trainer for which he React technology is used is the Nike React Element 55.