The Nike React Element 55, fashioned after heritage Nike running shoes, combines a respect for tradition with modern technology. Push yourself into the future with every stride. A lightweight upper won't weigh you down. A React Foam midsole delivers long-lasting comfort. The midsole/outsole features rubber pods for durable traction. Design lines mimic the wavy lines of the eyestays of the Nike Internationalist. A TPU heel clip enhances stability. A pull tab at the heel means easy on and off. Elements of reflectivity enhance safety in low-visibility situations.