NIKE® ZOOMX INVINCIBLE RUN FK 3 FOR WOMEN :: Perfect for the street, your updated Nike ZoomX Invincible Run FK 3 for women has taken all the best of the 2, including its beloved rocker shape and bouncy foam, and tightened only areas that needed to be perfected. Do you know the areas on the foot that really sweat after a hard run? A refreshed Flyknit upper provides extra room to breathe in these zones for greater airflow and an even better experience on long distances. With improved tooling in terms of fit, materials and driving behavior, you don't want your next run to end in your Zoomx Invincible Run FK 3.