DURABLE, STABLE AND CUSHIONED.Lighter than the Nike Metcon 3, the Nike Metcon DSX Flyknit Women's Training Shoe offers exceptional durability, stability and cushioning for intense cross-training activities from lifting to sprinting.Superior FitThe woven Flyknit upper seamlessly integrates areas of breathability, stretch and support while delivering sock-like comfort. Flywire technology—ultralight, super-strong nylon cables that integrate with the laces—locks down your midfoot while letting it flex naturally.Cushioned StabilityThe drop-in midsole is firmer in the heel for stability, and softer and more flexible in the forefoot to provide comfort and cushioning as you run.Durability Embroidered overlays in high-wear areas and firm rubber in the heel provide lightweight durability for the toughest intervals.More Details Midfoot rubber for abrasion resistanceFirm rubber in the heel for stabilitySticky rubber in the forefoot enhances tractionForefoot flex grooves for natural flexibilityFlyknit Origins Nike Flyknit technology was inspired by feedback from runners craving a shoe with the snug (and virtually unnoticed) fit of a sock. Nike embarked on a four-year mission with teams of programmers, engineers and designers to create the technology needed to make the knit upper with static properties for structure and durability. Then the precise placement of support, flexibility and breathability—all in one layer—was refined. The result is a featherweight, formfitting and virtually seamless upper.