Technologically advanced spikes for middle distance running.The lightest of Nike's spikes for middle distance running ever created. They are perfect for running on a track at distances from 800 to 5000 meters. Thanks to the Flywire technology used, they are an innovation among spikes by achieving the maximum lightweight construction, while maintaining the necessary protection for the foot and without compromising the durability of the shoe. The use of super-durable Flywire fibers allowed us to abandon synthetic layered constructions or standard reinforcements in the heel area. The result is a shoe that perfectly fits the foot, which is the perfect solution for middle-distance runners who want to achieve the best results on the track.UpperModern Flywire technology increases the durability of the shoe and gives the feet support exactly where it is needed. The foot does not move in the shoe, and the stability and fit during running achieved thanks to the incredibly low weight are a breakthrough in the design of athletics spikes.The use of airy, very light mesh ensures excellent foot ventilation and a feeling of comfort while running.MidsoleThe Flashlon foam formed as a result of a technologically advanced pressing process guarantees incredibly low weight, dynamic bounce and appropriate cushioning.OutsoleImproved Zoom Miler spike sole for even greater grip and comfort when developing high speeds on the treadmill.The TPU Sharkskin used on 3/4 of the shoe length - a material modeled on shark skin, allows for a reduction in the shoe's weight, while providing excellent grip on various types of surfaces.Six replaceable screws are placed in in optimally designated places on the sole for maximum traction and rebound dynamics.