Running never felt this good! Crush your running goals with the Nike InfinityRN 4. Whether you're a new runner or a seasoned one, these silhouettes featuring a clever combination of tuned support and intentionally placed cushioning help you give your absolute best right from the start. Powered by the new Nike ReactX foam which offers 13% more energy return compared to React foam, these exceptionally cushioned runners offer an incredibly smooth feel and let you hit sky-high mileage in no time. The curved outsole allows your foot to roll smoothly from heel to toe and through your stride to footstrike, while the new internal Flyknit fit band offers elastic, secure support. Run because you love it; win because you can with the Nike InfinityRN 4. Nike InfinityRN 4 features: Revamped Flyknit upper and a wider toe box ensure a stable and secure fit. Flyknit tongue provides an adjustable and plush feel. Foam collar offers a soft and supportive fit. Reflective details enhance low-light visibility. Water-repellent liner in the toe enables a dry and secure fit when the weather turns. Waffle outsole with increased rubber boosts traction and durability. Weight: 353 g (Men's size 10). Heel-To-Toe Drop: 9 mm.