The On Cloudboom Strike is a carbon-plated racing shoe that does not try to feel like a soft pillow. It is responsive, rolls forward aggressively and feels surprisingly stable for such a tall super shoe. It also has a serious weakness: during the Warsaw Half Marathon, its firm heel counter badly irritated my Achilles.
I tested it during tempo sessions, intervals and a 21.1 km race. This review separates On’s specifications from my experience and explains who may benefit from the shoe — and who should look for a more comfortable option.
This article contains clearly marked partner banners with affiliate links. Using one may support the site at no extra cost to you.
On Cloudboom Strike: the short verdict
- Best qualities: fast roll-through, springy response, a more stable platform than many super shoes and a highly breathable upper.
- Main drawbacks: a firm heel counter, awkward entry and a ride that offers little at easy pace.
- Best use: hard workouts and races from 10K to marathon for runners who prefer a direct, controlled super-shoe feel.
- My result: 1:26 at the Warsaw Half Marathon after a limited winter build-up — a good outcome, but not proof that the shoe alone made me faster.
How I tested the Cloudboom Strike
I used the shoes for several weeks on the track and road, including faster repetitions, tempo running and the Warsaw Half Marathon. My winter base was not ideal: about 125 km in January, 100 km in February and 100 km in March before the race, without consistent long runs or interval work.
That context matters. The Cloudboom Strike helped me hold rhythm and delivered an obvious sense of propulsion, but a race result also depends on fitness, course, weather and the day itself.
Key specifications
On lists the men’s shoe at approximately 210 g with a 4 mm drop, neutral support, high cushioning and high responsiveness. The construction combines Helion HF foam, a removable Bounceboard, CloudTec elements and a spoon-shaped Speedboard made from 100% carbon fibre. Figures vary by size and version. Source: On product specifications.
- Weight: about 210 g for the men’s version,
- Drop: 4 mm,
- Foam: Helion HF,
- Plate: carbon-fibre Speedboard,
- Construction: removable Bounceboard and CloudTec elements,
- Purpose: fast road running and racing.
Bounceboard and Speedboard: how the system works
The unusual component is the Bounceboard, a thick removable foam layer placed above the carbon Speedboard. Your foot sits directly on it rather than on a conventional fabric sockliner and lasting layer. On uses this construction to fit more responsive foam into a race-legal package.
The carbon Speedboard is stiff and spoon-shaped. Under my stride, the system did not sink deeply; it produced a quick rebound and a decisive roll forward. It worked much better as the pace increased.
Ride and responsiveness
The Cloudboom Strike does not feel like the softest super shoes. There is plenty of cushioning, but the sensation is firmer and more direct. At easy pace it can feel rigid; during a tempo session or race, the geometry begins to work more naturally.
The pronounced rocker moves weight towards the forefoot quickly. The faster I ran, the more clearly the shoe helped me maintain cadence. It supports existing fitness rather than replacing the training needed to build it.
Stability and grip
Stability was the biggest positive surprise. The broad platform and midsole geometry gave me more control through bends than several tall, soft rivals. This is still a neutral racing shoe rather than a stability model, but I never felt as if I was running on stilts.
Rubber covers the main road-contact zones. Grip was secure on a dry track and dry tarmac. I did not run enough hard miles in heavy rain to make a confident claim about wet-road traction.
Upper, fit and sizing
The one-piece upper is extremely thin, translucent and highly breathable. Its internal cage secures the midfoot without heavy overlays, and my foot did not move sideways during faster running.
Getting into the shoe is awkward at first because the opening and upper hold the foot closely. The material relaxed slightly after several sessions. Because of the unusual Bounceboard, low drop and close fit, I strongly recommend trying the shoe before buying and never debuting it on race day.
The biggest problem: heel and Achilles comfort
The firm, minimal heel counter caused a genuine problem for me. During the Warsaw Half Marathon it badly irritated the Achilles area and left a bloody rub. For a long race, heel comfort can decide whether the shoe is usable at all.
Anatomy and fit are individual, so not every runner will have the same experience. If your Achilles is sensitive, test the shoe on several short and long runs, experiment with socks and lacing, and do not take an unproven pair into a marathon.
A 1:26 Warsaw Half Marathon
Despite modest winter mileage, I finished the half marathon in 1:26, around four minutes outside my personal best. The low weight, aggressive rocker and springy response made it easier to hold pace, particularly as fatigue grew.
I treat the race as a strong real-world test, not a scientific experiment. It showed that the Cloudboom Strike works well with my mechanics at speed, but it cannot tell us how many seconds came from the shoe itself.
The model also attracted attention through On’s work with elite athletes. Hellen Obiri won the 2024 Boston Marathon and defended her title, but elite race shoes may be prototypes or modified versions and should not automatically be treated as identical to the retail model. Result source: World Athletics.
How it compares with other super shoes
Compared with the Adidas Adios Pro 3 or ASICS Metaspeed Sky Paris, the Cloudboom Strike felt less soft and more direct to me. It provided a stronger sense of control but less of the floating sensation associated with softer foams. This is a comparison of ride feel, not a laboratory ranking of running economy.
Runners who enjoy stable, forceful rockers may get on very well with the On. Those who prioritise softness and heel comfort over long distances should also try rival options on a proper long run.
Who is the On Cloudboom Strike for?
Consider it if you:
- regularly run hard workouts and race,
- like stiff shoes with a pronounced rocker,
- value a relatively stable platform in a tall super shoe,
- want a 10K-to-marathon option and can test it properly first.
Look elsewhere if you:
- have sensitive Achilles tendons or dislike firm heel counters,
- want an especially soft ride,
- need one versatile shoe for both easy and fast running,
- are new to running and do not yet know your fit preferences.
Pros and cons
Pros
- strong propulsion and fast roll-through,
- very good stability for a carbon super shoe,
- low weight,
- breathable, secure upper,
- a clear race-day character at higher speeds.
Cons
- the firm heel counter irritated my Achilles,
- awkward to put on at first,
- rigid feel at easy pace,
- limited versatility and a high racing-shoe price.
Verdict: is the On Cloudboom Strike worth buying?
The Cloudboom Strike is fast, responsive and surprisingly stable. It does not deliver a soft, rolling sensation; instead, the carbon system feels direct and the rocker is obvious. That is exactly what I enjoyed during tempo running and racing.
I would not buy it blind. My heel problem was serious and the ride is distinctive. With the right fit and several successful test runs, it can be a strong 10K, half-marathon or marathon shoe. Without that preparation, the comfort risk is too high.
Frequently asked questions
Is the On Cloudboom Strike suitable for a marathon?
Yes. On designs it for long road races, but you should test the heel and fit on a long training run before using it for a marathon.
Is the Cloudboom Strike soft?
It has substantial cushioning, but the ride feels more springy and direct than the softest super shoes. It works best at faster paces.
Is it stable?
In my testing, the broad platform provided strong control for a tall carbon shoe. It remains a neutral racer, not a stability shoe.
Does the carbon plate really help?
At speed I could clearly feel the rapid roll and springy response. A race result cannot be attributed to the plate or shoe alone, however.
Does the Cloudboom Strike rub the Achilles?
Its firm heel counter caused a serious rub for me during a half marathon. Fit is individual, so test it thoroughly before an important race.
Which sessions suit it best?
Intervals, tempo runs and races. More comfortable and versatile shoes make better choices for easy daily mileage.