Thanks to the ultra-comfortable Lunarlon cushioning and the durable synthetic upper of the Nike Free 40 Magnet Magnet, you can now become a true workout warrior. More flexible than the 5.0 and more cushioned than the 3.0, the Men's Nike Free 4.0 Running Shoe unleashes your natural stride with a lightweight, supportive upper and a highly flexible, low-profile outsole. Integrated lugs provide ideal traction. Midsole is cored out for a flexible, lightweight feel. This Nike Sport Shoes New Collection inspires motion. Nike Free 4.0 Running on sale, so you saved some money! Minimal rubber in the toe and heel areas for lightweight traction. Nike Free 4.0 Running | Nike Sport Shoes New Collection Full-length Micro G® foam turns cushioned landings into explosive takeoffs. The stitched rubber midsole and the textured rubber sole combine to give the perfect amount of cushioning, traction, and durability.