Nike Free technology has formed the bedrock of many of the sportswear giant’s sneakers for over the past decade. Now, in light of new studies that show how the foot expands and contracts through impact and takeoff, the Swoosh has re-engineered the technology to along a splaying, auxetic midsole that absorbs shock while accounting for the dual-plane expansion in foot size during foot strike. The multi-directional outsole also flexes both linearly while running, and multi-directionally in training to give the athlete a better degree of control and flexibility.
To this end, Nike has introduced the Free RN, Free RN Flyknit and Free RN Motion Flyknit for running, and the Free Train Force Flyknit for training purposes. Look for these silhouettes to become available online at Nike.com on April 7, and the Nike Free RN Motion Flyknit on May 5.