Summary

We spent 6.9 hours reading reviews from experts and users. In summary, this is what runners think:

8 reasons to buy

  • A lot of testers welcomed the style of the Nike Flex RN 2015, which, for them, was cool and elegant.
  • The general durability of this model was lauded by a number of runners; they said that the components didn’t wear off easily.
  • It felt adequately lightweight, according to some users.
  • The flexibility of the underfoot platform was given praise because it allowed the runners to move their feet more naturally through the gait cycle.
  • The cushioning system was recognized by many for its capability to carry the foot responsibly and cushion impact during the landing phase.
  • Most reviewers appreciated the upper unit, which is a mix of mesh and foam that enhanced the fit and breathability.
  • The outsole held onto the ground with ease and sureness, as noted by some testers.
  • It was an affordable shoe, according to those who have tried it.

1 reasons not to buy

  • Some of the testers felt that it was a bit tighter than what they were used to.

Bottom line

The Nike Flex RN 2015 was able to offer great service to neutral runners, both new and advanced. Many of them felt that it was comfortable, secure and responsive. The cover system and the cushioning unit received a lot of praise. But the fit wasn’t as agreeable to some because they stated that it was a bit tight.

Facts

  • The 2015 version of the Flex RN from Nike is a definite step up when it comes to design and appeal. Utilizing a more contemporary frame of look, this running shoe does well as a sports shoe and as a casual shoe. Even the subtle overlay design has a honeycomb shape to it. It’s a solid option for daily running and casual walking.
  • The Breathe Tech upper unit technology makes sure that the upper is able to wrap the foot snugly, securely yet comfortably at all times. The breathable materials used for this unit make sure that the foot stays dry and cool in any activity.
  • The midsole unit features lightweight foam components that carry the foot well through the gait cycle. It delivers efficient underfoot cushioning and overall comfort that’s ultimately responsive to the natural movement of the foot.
  • Durable rubber is placed in critical areas of the outsole where it’s most capable of holding back wear and tear. Flex grooves throughout the sole unit make sure that the runner experiences an unrestricted and consistent range of motion.

The Nike Flex RN 2015 is true to its size. It’s available in a variety of sizes that adhere to what the runners are most accustomed to. It has a medium width when it comes to its heel, mid-foot and forefoot areas. It can accommodate feet with narrow-to-medium dimensions.


The outsole unit of this running shoe makes use of a high quality rubber. It’s placed in sections of the external sole unit where wear and tear are most commonly observed. They offer durable protection from abrasion, as well as traction for better control over the roads.

Full length flex grooves make sure that the outsole is able to provide maximum range of motion for the wearer. This design actually goes well with the pliable and soft nature of the foam cushioning to enhance the flexibility of the runner.


The Phylon mid-sole is a lightweight foam that’s responsive, but not very thick. This low-profile cushioning system delivers responsible cushioning, as well as additional pressure mapping to improve the comfort that the foot experiences.

The two-piece Phylite carrier encourages natural movement. Separated near the forefoot, it gives the front section of the foot more incentive to move freely, especially when handling toe offs and forefoot bending. It also reduces the bulk of the sole unit.


The mesh material that’s used as the main component in the upper is comfortable and breathable. It offers a well-ventilated coverage that keeps the foot cool and dry because its open construction actually encourages air to seamlessly enter the shoe’s interior.

The Breathe Tech system in the upper uses mesh and foam, which keeps the foot in a comfortable and supportive wrap. It’s a snug feeling, but not too tight as to feel uncomfortable.

The overlays that were used in the Nike Flex Run 2015 are minimal and they aren’t stitched onto the upper unit. The seamless design reduces skin irritation and encourages sockless wearing.

The sock-liner that’s used for this model is made from Ethylene vinyl acetate, which is a durable material that gives additional cushioning, as well as shock attenuation for a smoother ride.

Author
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.

jens@runrepeat.com