• Discontinued
  • Terrain


    Shoes best for road, track and light gravel. See the best road shoes.


    Shoes best for trail, off road, mountains and other unstable surfaces. See the best trail shoes.

    Good to know

    As long as you stick to the road or path, and if you want just one running shoe, buy a road running shoe.

  • Arch support

    Neutral / cushion / high arch

    Shoes for runners who do not need any additional arch support (Around 50% of runners). Best for people with normal, high or medium high arches. See the best neutral shoes.

    Stability / overpronation / normal arch

    Shoes for runners who need mild to moderate arch support (Around 45% of runners). Best for runners with a low arch. See the best stability shoes.

    Motion control / severe overpronation / flat feet

    Shoes for runners who needs a lot of arch support. Best for runners with flat feet. See the best motion control shoes.

    Good to know

    - Rule of thumb: If in doubt, buy neutral shoes to avoid injuries.
    - More about arch support in this video.
    - Find your arch type by following steps from this video.

  • Use

    Daily running

    Cushioned shoes for your daily easy running. Great comfort. See best shoes for daily running.


    Lightweight shoes good for races, interval training, tempo runs and fartlek. Here are the best competition running shoes.

    Good to know

    If you want just one pair of shoes, buy a shoe for daily running.

  • Price
  • Weight
    Men: 9oz
    Women: 7oz
  • Heel to toe drop
    Men: 6mm
    Women: 6mm

    The height difference from the heel to the forefoot, also known as heel drop, toe spring, heel to toe spring or simply drop.

    There are many opinions about what a good heel drop is. We do not recommend any in particular. Lean more in this video.

  • Width
    Men: Normal
    Women: Narrow, Normal
  • Release date
  • Special editions
Show more facts

Expert Reviews

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  • First look | UNBOXING Fashion & Sports

  • First look | KINKEB

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  • The Nike Flex RN 2018 features a few updates in the upper and in the outer sole. The improvements aim to deliver a responsive and flexible ride without affecting the fit and the breathability of the upper.
  • A circular-knit material has been used in this version to replace the engineered mesh found in the upper of the Flex RN 2017. The circular-knit construction offers flexibility without compromising breathability and comfort.
  • The outsole of the shoe has been modified as well for durability, traction, and flexibility. It uses the same rubber material but with a new placement and tread pattern.

Nike offers this version in standard running shoe length and width. The knit upper is designed to accommodate a wide range of foot shapes – medium-footed and slightly wide feet. However, some users observed that it runs small and narrow. The Nike Flex RN 2018 is available in standard D-Medium for men’s and B-Medium for women’s.

The outsole of the Nike Flex RN 2018 is made up of a rubber material, which is specifically placed in high wear areas. The sections of rubber tread in the forefoot and heel area offers durability and reliable traction for a wide variety of paved surfaces.

The Tri-star pattern in the outsole offers flexibility without affecting the cushioning. The grooves follow the natural movement of the foot through the gait cycle.

In the midsole of the Nike Flex RN 2018 is the dual-density Phylon foam. This durable and lightweight midsole foam extends from the heel to the forefoot, giving the foot a reliable cushioning throughout the run. Aside from giving runners a comfortable platform, the Phylon foam also delivers a flexible, responsive ride. The Phylon foam is also present in the Nike Downshifter 7 and other road running shoes from Nike.

Above the Phylon foam is the minimal, molded textile footbed. It gives additional underfoot cushioning, especially to areas that are not usually cushioned.

The Nike Flex RN 2018 has a circular-knit upper for maximum breathability. It is impressively stretchable, giving the foot a comfortable wrap. It allows the foot to move comfortably as it flexes in every step.

The shoe has a lightly padded tongue and collar for comfort. The synthetic overlays deliver an enhanced fit, and breathable fabric lining offers a great in-shoe feel.

Lastly, the Flex RN 2018 has a reliable lace-up closure. For an adaptive and supportive feel, the Flywire cables are attached to the laces.