Verdict from 6.5 hours of research from the internet

7 reasons to buy

  • Lightweight: The majority of users say the Nike Flex RN 2020 is not as clunky as other running shoes.
  • Stable: Most wearers say it offers great stability for a neutral shoe.
  • Comfort: Many testers review the shoe as very comfortable.
  • Supportive: The shoe gives excellent lower back and leg support, note some users.
  • Easy-clean: A lot of users like that the shoe is no fuss when it comes to cleaning.
  • Versatile: According to some reviewers, the Flex RN 2020 is practical for all-day wear.
  • Value: Several buyers like the affordability of the shoe.

2 reasons not to buy

  • Upper: Few buyers express that the upper was not as durable as expected in rough wearing.
  • Slippery: The sole can get slippery when worn for indoor training, says one user.

Bottom line

The Nike Flex RN 2020 is a great lightweight solution to your running needs. Designed to follow the success of its predecessors, the Flex RN 2020 continues to offer both flexibility and comfort. The updates that lead to the shoe’s excellent performance are the enhanced dual-density foam and the redesigned flex grooves that encourage a more natural running motion.

Tip: see the best running shoes.

Expert reviews:

User reviews:

Nike Flex RN 2020: Comfort for miles

The Nike Flex RN 2020 is a neutral running shoe that lives up to the Nike standards of being stylish and functional. A contrast to its predecessor, the Flex RN 2019, it now features improved traction, flexibility, and fit -  all the essentials of an excellent Nike running shoe.

What is it best for? Daily running, all-day wear, road running

Benefits of wearing the Flex RN 2020

The Flex RN 2020 was designed to retain the best features of the models before it. Enhancements based on its predecessors’ shortcomings were also taken into account, thus improving the Flex RN’s comfort and performance. It is even so lightweight that some runners say it feels like running barefoot.

What’s been replaced? The shoe’s upper now uses an adaptable stretch mesh material that moves better with your foot. It is more breathable compared to the knit material from the Flex RN 2019. Running on a hot summer’s day won’t be a problem anymore.

Also changed is the shoe’s hexagonal outsole from the Flex RN 2018. The outsole now features flex grooves that provide better grip and reliable traction.

What’s been retained? The Flywire cables that have been present in the previous Flex RN models can still be found in this shoe. They never fail to keep the feet steady and secure with every step.

Size and fit

True to size based on 12 user votes
Small (8%)
True to size (83%)
Large (8%)
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Fit
Tight Loose
Forefoot fit
Narrow Wide
Heel fit
Narrow Wide
Toebox
Tight Roomy

How Flex RN 2020 compares

This shoe: 74
All shoes average: 86
53 98
This shoe: $80
All shoes average: $119
$40 $350
This shoe: 7.3oz
All shoes average: 9.5oz
3.5oz 16.2oz
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