A fan-favorite returns with the women's Nike Air Zoom Structure 25. The most stable Nike running shoe in their lineup comes with a high stack of strategically placed cushioning to support you through long miles, easy training runs and long days spent on your feet. A snug midfoot and accommodating toe box keep your foot secure and give you plenty of room to wiggle your toes, while the durable rubber outsole puts this tried and trusted stability running shoe firmly into the reliable daily trainer category. Features: Upper: The upper is a single layer of mesh for better breathability. An accommodating toe box works with a midfoot system and structured heel collar to give you a more supportive fit. Soft materials on the inside of the heel, collar and tongue keep blisters away. Midsole: The high-cushioned midsole gives you a soft and comfortable feel as you log your daily miles. A rocker shape gives this shoe a smooth ride while a Zoom Air unit in the forefoot adds some responsiveness when you toe off. Outsole: Durable rubber outsole has grooves in the forefoot to create flexibility, and vertical grooves down the side for extra stability.