Women's Nike React X Infinity Run 4 Road Running Shoes white Size 7 Very gently worn. Some light staining on the toes (see pictures). From mfr: Maximum cushioning provides elevated comfort for everyday runs. Experience a soft, rocker-shaped platform made with new ReactX foam underfoot, and an ultra-comfortable collar and tongue for a snug feel. Plus, a water-resistant membrane was added to this version to help keep you dry. ReactX foam gives you +13% energy return compared with React foam, helping you stay fresh and bouncy during your run. Key features The updated Flyknit upper and a water-resistant membrane help keep you dry New ReactX foam in the midsole for extra cushioning A Waffle outsole for durable traction on the roads An ultra-comfortable collar and tongue for a soft, snug fit What's new? New ReactX cushioning for even more comfort, and a revamped upper and wider toe box. Product details Heel-to-toe drop: 9mm Responsiveness: moderate The more responsive the shoe, the more energy return you can get back with each step. Whether you want to run a little bit faster or with a little less effort, responsive shoes help give you slightly more spring in your step to get more out of your run. Contained breathability A water-repellent liner in the toe helps keep you dry when the weather turns.