NWT in a box authentic LIGHTWEIGHT AND BUILT FOR SPEED. Designed to make fast go faster, the Nike Zoom Gravity is built to take you from quick tempo runs. Snappy forefoot propulsion and grippy, multi-surface traction combine to maximize your stride. Responsive Zoom Air unit in the forefoot gives you that propulsive, snappy feeling The lifted height along the midsole makes room Springy outsole rubber on the heel. Higher heel with foam on the sides creates a cupping sensation and adds stability.