Only worn once! The Women's Nike Free RN Flyknit 2018 Running Shoes provide the perfect combination of comfort and performance. The Flyknit upper is designed to provide maximum airflow and keep your feet cool and comfortable during your runs, while the integrated Flywire technology offers great support through the midfoot to help you stay focused on your performance. The rounded heel provides a snug fit and the texture added under the toe and heel gives you increased traction in the high-abrasion zones. With the soft, lightweight sole, you'll have a natural feel with every step. If you're looking for a running shoe perfect for throwing in your gym bag or for shorter distances, the Nike Free RN Flyknit 2018 Running Shoes are a great choice! Features Texture added under toe and heel for traction in high-abrasion zones Integrated Flywire technology for support through the midfoot Rounded heel Soft, lightweight sole for a natural feel Nike Flyknit upper for airflow Ideal for short runs Specs Offset: 8mm (14mm forefoot, 22mm heel) Weight: 5.5 oz. Upper: Flyknit