Nike Free 4.0 Flyknit University Red Hot Lava (717075-601). 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: University Red Hot Lava, Product Code: 717075-601.