The i-Run team says
Technologies
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Nike Free
According to various studies, the feet of athletes who are accustomed to running barefoot are generally stronger. Natural movement increases strength, and strength is synonymous with speed. Therefore, Nike Free is dedicated to speed. But first, you need to build muscle to get used to the Nike Free technology. The deep grooves in the outsole allow the feet to flex and move naturally, as if you were walking barefoot.
For who and for which use?
Discipline : Crossfit / Training, Gym / Fitness, Lift, Weightlifting
Gender: Woman
Stability: Neutral
Use:
Regular
(once or twice a week)
Surface: Gym floor
Weight of runner: All
Shoe weight: 256g