Nike React Infinity Run Flyknit 2 Women's Running Shoes Size 9 Good, preowned condition. These have been cleaned and sanitized. Please see photos for condition. The Nike React Infinity Run Flyknit 2 continues to help reduce injury and keep you running.A refreshed upper uses Flywire technology that combines with Flyknit for support and breathability where you need it.The high foam heights provide soft responsiveness and long-lasting comfort.It's still one of our most tested shoes, designed to help you feel the potential when your foot hits the pavement.