The Nike Air Zoom Maxfly is a unisex lightweight spike specially designed for sprinting. This striker performs best in sprints from 60 to 400 meters. It is designed to withstand the enormous forces associated with sprinting while improving performance. Take your performance to the next level, get competitive and break records with this fantastic spike. Sole With the Air unit in the forefoot you feel a springy feeling, so you run with more energy. The spikes provide excellent grip and traction and combine that with a very responsive feel. To build up that speed, the Air Zoom Maxfly contains a carbon plate over the entire length. This plate not only provides propulsion, but also stability during your push-off. In combination with the removable spike tips in the forefoot, the outsole pattern provides enormous grip. Upper This shoe has a knitted upper, making the material seamless and able to stretch with your foot. The knitted upper also has high breathability to keep your feet cool. With these spikes you get the most out of your performance! Standard spike tips and a key are included with this spike.