Verdict from 8.4 hours of research from the internet

5 reasons to buy

  • The Nike Flex Experience RN 9 has a design that is appealing to the eyes, according to several consumers.
  • Several consumers are happy with the lightweight nature of this road running shoe.
  • The midsole unit is said to provide responsive performances.
  • Users are particularly positive about the flexibility of the platform as it allows for natural transitions.
  • Breathability is a trait that people seem to appreciate from this product.

2 reasons not to buy

  • A few people believe that the heel part of the in-shoe experience is a bit restrictive.
  • Traction is flimsy with this shoe’s non-rubber outsole, according to several purchasers.

Bottom line

People are mostly positive with the Nike Flex Experience RN 9. This product is deemed suitably lightweight and ready to perform feats of speed and efficient running. Natural gait progression is apparently the name of the game of this model. With the shoe's supportive platform, running can be secure and comfortable at the same time.

Fans of road-ready running footwear can enjoy the Flex Experience RN 9.

Tip: see the best running shoes.

User reviews:

The Nike Flex Experience RN 9 is an update to a well-known series of running shoes that are designed for neutral pronators. The upper unit is the part that gets the updates, with mesh instead of a knitted textile governing the whole look and stitch-on stretch-panels helping to secure the foot. The midsole is a naked piece of responsive foam that doesn’t have rubber yet has a generous helping of sipes for natural movement.

The standard sizing schemes have become the basis of the creation of the Nike Flex Experience RN 9. Runners can use their usual choices of size when aiming to purchase a pair. Still, it is highly recommended to test the shoe first or study user reviews that tackle the aspect of size to fully understand what to expect from this product.

When it comes to the sideways fit, the elements that work together to deliver a secure yet accommodating wrap are the form-welcoming upper unit and the semi-curved shape of the midsole. The movement capacity and the natural shape of the human foot is the blueprint of the whole construction of this Nike running shoe.

The outsole unit of the Flex Experience RN 9 features no rubber compounds. The base of the foam midsole is exposed to the ground, so it is the only aspect that offers surface grip. Shallow holes are the ones responsible for the traction capacity of this aspect of the shoe.

Extreme platform flexibility is afforded by the set of flex grooves that line the horizontal aspect of this product’s heel and forefoot. These elements allow the foot to enjoy its full bending potential, thus energizing each step and giving more potential for the performance to speed up.

Underfoot cushioning is the responsibility of a foam piece. This feature runs the whole length of the shoe, giving lightweight support and movement-welcoming performance at all times. The heel part has not-too-prominent sidewalls that help in steadying the foot and keeping it in place.

A fabric-topped insole is placed right above the main cushioning unit. The job of this add-on is to provide a soft plane for the underside of the foot. It can be removed or replaced with a different insert if the wearer wants to do so.

The upper unit of the Nike Flex Experience RN 9 features a mesh instead of a knitted fabric like the eighth version’s. The slightly more open construction of this material permits heightened airflow. Form-fitting capacities are also improved thanks to its stretchy nature. Breathable meshes grace many Nike series, including the well-known Downshifter line.

A set of stretch-panels are stitched onto the sides and the heel of this neutral running shoe. The job of these add-ons is to provide security and snugness without overly restricting the foot.

Some printed overlays reinforce the bending points of the vamp and the eyelets of the shoe’s roof.

A pull tab is placed on the tongue unit instead of the heel part. The purpose of this fabric loop is to widen the opening of this product to facilitate an effortless on-and-off wearing experience.

Size and fit

True to size based on 12 user votes
Small (33%)
True to size (58%)
Large (8%)
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Same sizing as Nike Flex Experience RN 8.

Calculate size

Forefoot fit
Narrow Wide
Heel fit
Narrow Wide
Tight Roomy

How Flex Experience RN 9 compares

This shoe: 87
All shoes average: 86
53 98
This shoe: £70
All shoes average: £120
£40 £340
This shoe: 227g
All shoes average: 270g
100g 460g
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.