5.337 users: 4.5 / 5
17 experts: 82 / 100
Terrain: Road
Weight: Men 7.6oz / Women 6.4oz
Heel to toe drop: Men 8mm / Women 8mm
Arch support: Neutral

Verdict from 8.4 hours of research from the internet

7 reasons to buy

  • Many were impressed by Nike Free RN Flyknit’s breathable upper coverage.
  • A number of runners mentioned that the cushioning is just right.
  • The outsole provides reliable traction while enhancing flexibility.
  • Many runners applauded the design of the shoe.
  • A significant number of runners said that the shoe is comfortable.
  • The shoe is available in different color options.
  • It is lightweight.

3 reasons not to buy

  • A handful of runners mentioned that they experienced blisters around the heel area.
  • Some users were disappointed with the shoe’s durability. The upper material wore out quickly after a few use.
  • Some runners found the shoe to be too narrow for their preferences.

Bottom line

A neutral shoe designed for road running, the Free RN Flyknit offers flexibility and responsiveness. Some users were impressed by the shoe's breathability, traction and comfort while others have issues with its durability and narrow fit. Overall, the shoe is still a reliable partner for daily training and short distance road running.

Tip: see the best running shoes.

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  • The major update of the Nike Free RN Flyknit is in its midsole. It is redesigned to enhance flexibility. It utilizes the IU002 carrier system that provides a soft cushioning while enhancing flexibility.
  • It also features the Auxetic Tri-Star outsole that is designed to give added traction and flexibility in each step. With this outsole, the foot moves more naturally and comfortably.

The Nike Free RN Flyknit is ½ size larger than the standard running shoe size. It is narrow in the heel and has low volume in the midfoot. This shoe is available in standard D and B widths for men’s and women’s version. This shoe accommodates comfortably those with narrow to medium-size foot measurements.

The outsole of the Nike Free RN Flyknit is made up of durable rubber material that gives reliable traction while running on the road. Along with this is the Auxetic Tri-Star geometry that delivers maximum flexibility in each step.

The midsole utilizes the IU002 carrier system that is engineered to provide a soft cushioning and responsive ride. This works perfectly with the fused lunar that gives added cushioning for protection and comfort. This midsole configuration is also utilized in the Nike Free RN Flyknit 2018.

The Nike Free RN Flyknit features a single-seam Flyknit upper that provides a sock-like feel while giving maximum breathability. The Dyanamic Flywire cables are woven into the upper to provide necessary support in every step.

Size and fit

True to size based on 260 user votes
Small (10%)
True to size (87%)
Large (4%)
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Same sizing as Nike Free RN Flyknit 3.0.

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How Free RN Flyknit compares

This shoe: 90
All shoes average: 86
58 99
This shoe: $130
All shoes average: $119
$40 $350
This shoe: 7.6oz
All shoes average: 9.5oz
3.5oz 16.2oz
Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.