Nike React Element 55 Men's Shoe - Grey The Nike React Element 55 Shoe borrows design lines from heritage runners like the Nike Internationalist and then places it all on Nike React technology. Benefits A lightweight textile and synthetic upper has a subtle sheen for an elevated look. Nike React technology delivers an extremely smooth ride. Rubber pods on the midsole and outsole provide durable traction. Eyestay foxing follows the wavy design lines of the eyestays of the Nike Internationalist. A TPU heel clip provides a stable feel. A pull tab at the heel provides easy on and off. Next-Level Traction Extending to the midsole, springy rubber nodules are strategically placed at the front and heel of the outsole to deliver great grip.