EXCEPTIONAL CONDITION- No Flaws- Can't run anymore due to illness - LIKE NEW The Nike Innovation team developed a new Flyknit upper called AtomKnit. Flyknit fabric is steamed and stretched, delivering a lightweight, contoured fit with minimal water absorption and enhanced breathability What Is Nike ZoomX? Nike ZoomX is lighter, softer and more responsive than any Nike foam, designed to maximize speed by delivering greater energy return. ZoomX was derived from a foam traditionally used in aerospace innovation, applied for the first time in performance footwear in the Nike Zoom Vaporfly Elite and 4%.