Nike Free 4.0 Flyknit Hyper Orange Brave Blue (717075-804). We have many different styles of authentic Nike Free 4.0 Flyknit shoes at a good and cheap price at our online store. Find out your limited sneaker at Kicks-Crew today! Style: Nike Free 4.0 Flyknit, Series: Hyper Orange Brave Blue, Product Code: 717075-804.