Women's Nike React Element 55 - Black - Low-top sneakers The nike react element 55 is inspired by the design lines of traditional running shoes like the nike internationalist, all about nike react technology. The reactive rubber nodules, which extend to the midsole, are strategically placed at the front and the heel of the outsole for excellent grip. Lightweight fabric and synthetic upper part with subtle sheen for an improved look. Nike react technology for an extremely soft tread. Rubber pads on the midsole and the outsole to provide lasting traction. Design with eyelet reinforcement that follows the wavy lines of the nike internationalist eyelets. Tpu heel clip for greater stability. Brush on the heel to put them on and take them off easily.