The battle between adidas and Nike over PrimeKnit and Flyknit will have to play out in the courts, but the fact that Nike made their shoe known first is incontrovertible. The Flyknit Trainer is the most well-known silhouette, seeing that it was repurposed for the mass-market Flyknit One, but the Flyknit Racer, which utilized the same upper as Nike's Olympic track spikes, is the real prize. As of now, the whole concept of knit uppers is in its infancy, yet this design will remain a powerful one for more than just its timeliness.