AN EXPERIMENT GONE RIGHT. The Nike React Element 55 is a balanced blend of classic design and futuristic innovation. Nike React foam creates lightweight, bouncy comfort while the rubber outsole pods and exaggerated outsole boast a cutting-edge look that turns heads. Nike React technology creates an extremely smooth ride. Rubber pods on the midsole and outsole provide durable traction. Eyestay shape follows the wavy design lines of the eyestays on the Nike Internationalist. TPU heel clip provides a stable feel.