Suela de Caucho
A one-piece Flyknit upper conforms to the shape of your foot for a snug feel.
The incredibly flexible Nike Free sole moves with you, mimicking the movement of your foot by expanding and contracting with every landing and push-off, for a freeing, natural feel.
Strong yet feather-light Flywire cables work with the laces to provide more support as you tighten them.
Single seam on the inside of the heel for a smooth feel
Heel is rounded to roll with the ground on heel strike
Nike Mens Free RN Flyknit 2017 Running Shoes Black/Black/Blue Lagoon B00XFYQD8G