Four years after its unveiling, Nike's innovative Flyknit mesh sneakers continue to form the frontline of performance footwear. After making its first appearance in the Flyknit racer, the technology has been introduced to the training, running, soccer, basketball and lifestyle releases. Meaning there are dozens of styles to choose from now. It's certainly a favorite of the Valet. team (and readers), so we rounded up our favorite pairs available to buy right now.