We spent 6.8 hours reading reviews from experts and users. In summary, this is what runners think:

9 reasons to buy

  • The Cloudracer is designed for speed work on races or on trainings, according to quite a number of users.
  • There is a noticeably decent amount of cushioning noted by a few testers.
  • Being stylish is one of the compliments that many testers say.
  • Many runners who tried the On Cloudracer applauded its super lightweight and quality performance.
  • It is light and low to the ground.
  • Its cushioning is efficient enough for a minimalist-type racing shoe.
  • It gives a springier bounce during the race based on several comments.
  • The Cloudracer delivers a stable ride because of the Speedboard.
  • There is much protection found in this shoe than the other ON running shoes.

3 reasons not to buy

  • It is a bit narrow.
  • Many runners complained of the needed transition before they get used to its design.
  • Its expensive price tag holds back some runners from buying it.

Bottom line

The ON Cloudracer is a racing flat shoe that can be used for speed works. Its main features provide a sleeker design for speed and support, together with an adequate amount of the cushioning and protection. With added stability, all you feel is a springy and responsive ride.


Expert Reviews

75 / 100 based on 3 expert reviews

  • 88 / 100 | Sota Sato | Level 1 expert

    Insane shoe, made for high performance athletes.

  • 78 / 100 | Gearist | | Level 5 expert

    The closer to the ground feel and construction gives excellent ground feel and the response, thanks again to the stiff strobel board/Speedboard construction is very good.

  • 70 / 100 | Runner's World | Level 5 expert

    It's not pillowy soft, but you wouldn't expect it to be, given that you're only an inch from paved surfaces.

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  • On made very slight changes to the Cloudracer in order to maintain the top quality and performance of the original model. The biggest change in the 2nd version of the Cloudracer is the Speedboard in the midsole. This greatly influences the stability and responsiveness of the shoe.
  • Another notable change that will certainly boost the shoe’s performance is the removal of basically all stitching. What makes this change even more significant is the fact that the mesh upper is incredibly very light, flexible, and softer now. Without the stitching, there should be very little risk of getting an irritation or rubbing.

On made sure to retain the fit and sizing of the original model, which are on the dot. Runners with average foot will find the medium heel and midfoot fit superb. However, as with most racers, the forefoot is a bit snug so sizing up is always an option for those who want more wiggle room in the toe box. Available widths are D and B while sizes are from 7 to 15 for the men’s and 4 to 13 for the women’s.

The outsole makes up a large portion of the shoe as the On’s patented Cloudtec technology is found here. Cloudtec is made up of 13 pods, 9 in the forefoot and 4 in the heel, that compress upon landing and lock themselves together for enhanced propulsion and traction. The Clouds also basically serve as the shoe’s cushioning system. Beneath the clouds is a honeycomb pattern of rubber for traction and durability. This CloudTec technology is also used in the On Cloud running shoes and other running shoes from ON Running.

A high-grade EVA is located in the midsole for cushioning properties as well. The main feature, however, is the new Speedboard. This technology uses a plastic material built with rails that are specifically designed for the forefoot, the midfoot, and the heel for respectable stability and decent smoothness through the gait cycle.

An Ultra Light Airmesh offers unbelievable breathability. It is so porous that runners can literally see their feet through the mesh. As the mesh is now softer, it also feels very comfortable to the skin for a really nice wrap on the foot. A Super Light perforated tongue keeps up with the pace of the mesh regarding ventilation. On includes a reflective material on the TPU heel counter while a non-slip lining is part of the nice fit.

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.