Nike Free RN Flyknit 2018 Damen's Running Schuhe brings you miles of comfort with a Flyknit constructed upper that delivers even more zoned stretch and breathability than before. Made for short runs when you want a barefoot-like feel, the Nike Free RN Flyknit 2018 Damen's Running Schuhe is the lightest in the Free RN family. Its sock-like upper has more stretch yarns than previous versions, so it hugs your feet more than ever.