The Nike Free Flyknit 4.0 combines the best assets from the Free Flyknit 3.0 and the Free 5.0 for a shoe that sneaker designer and Finish Line contributor, Brett Golliff, says is “the best Nike Free ever“.
It has all the design features necessary for the perfectly constructed running shoe. Flywire technology minimizes weight and maximizes support, woven Flyknit material provides a sock-like fit, and the phylite midsole that has the ability to mimic the bottom of your foot during stride. The 4.0 finds the middle ground as far as support — where the 5.0 has the most, and the 3.0 has the least.
The intention of the design of the Free Flyknit 4.0 is to give you the closest feeling possible to a barefoot run so that muscles around the ankles and feet can build up how they’re naturally supposed to (versus pampering feet too much like other runners do). Since in the past, we’ve been so used to so much plush cushioning and support, it’s been suggested to work your way down the list — starting with the 5.0.