The idea behind Nike Free is simple: Improve your athletic performance by allowing your body to perform naturally. Nike Free shoes offer the proven benefits of barefoot training.
Allowed freedom, your toes will flex and grip, exercising muscles in a natural chain neglected in traditional footwear.
Exercising these muscles allows athletes to achieve small performance benefits, adding millimeters to a vertical leap or shaving milliseconds off a race time while strengthening key stabilizer muscles that help prevent injury.
The outsoles of Nike Free shoes feature siping (deep slices) and reverse flex grooves that encourage flexion and extension in both directions. With a lightweight, seamless upper on top of a flexible outsole, Nike Free shoes merge the natural, healthy motion of a bare foot with the protection of traditional footwear.
In the Nike Free continuum, the lower the number in a shoe’s name, the closer it is to barefoot running. On the continuum, 10.0 represents conventional footwear while zero represents the bare foot.