The one-piece construction seamlessly integrates these areas of high
breathability with stretch and support where you need it the most,Stretch yarns are nestled between Flywire cables on the lateral side to
provide increased stretch in this high expansion zone, while structured yarns
on the medial side supply lightweight stability; uniting to enhance the snug,
contoured fit of the Nike Free RN Flyknit. Elastic yarns have been added to the
heel to supplement the firm and adaptive feel of the shoe, promoting lockdown
and improving stability.
