On Cloudboom Strike Review: A Firmer, More Gradual Racer Worth a Look

Introduction

The On Cloudboom Strike enters the super shoe market at a premium price of $280, and after racing a local 10K in it, we have a clear picture of what kind of racer this is. Our test came in the form of a genuine race effort: a small-town Labor Day 10K at an average pace around 6:45 per mile, the first real race back after a long foot injury layoff.

The headline specs put it firmly in racing territory. It carries a 4mm drop with 39.5mm of stack in the heel and 35.5mm in the forefoot, and the weight lands at 7.6 oz (215g) in a men’s size 9 and 6.6 oz (187g) in a women’s size 7, right in line with other race day options.

The Insert Design

The most unique feature of the Cloudboom Strike is how On handled the plate and the insert. Rather than hiding everything under a thick midsole, the carbon plate sits adjacent to the insert geometry: the forefoot portion of the insert is much thicker, while the heel is thinner. Look inside the shoe and the carbon plate is visible, sitting much closer to your foot in the heel with a subtle S-shaped curve, and with a bit more foam between you and the plate further forward.

This works together well, and plates closer to the foot generally have more impact on running economy. The trade-off is that you cannot really swap out the insert if you want the shoe to run the way it was designed to. One minor annoyance we noticed was a little squeak from the shoe, especially while walking around.

Construction and Ride Feel

The profile looks like there is less foam under the foot than the numbers suggest, because much of the stack lives inside the insert. There are no major sidewalls coming up on either side, the platform stays narrow through the midfoot, and the forefoot is wide and ready to propulse off of. The rocker is much more gradual than most racers on the market: the Cloudboom Echo 3 has a noticeably more aggressive toe-off rocker, and even the Endorphin Pro 3, itself considered a gradual rocker, is more rockered than this.

The foam feel is firmer but responsive, most similar to the Metaspeed Paris line between the Edge and Sky. In terms of stability, the firmer forefoot is genuinely stable for the toe-off region. The midfoot is the weaker area: there is a small hitch between the rearfoot and forefoot, a gap with less than full ground contact, and we wobbled a little more than typical when not fully up to pace. Compared to the Vaporfly 3, some regions are more stable and others less, but overall it feels more stable than the Vaporfly 3’s ultra-narrow midfoot.

Upper, Fit, and Race Day Impressions

The upper is race fit and race ready. It is a synthetic mesh with just enough breathability but not an airy feel, and it does not clamp down uncomfortably. There is a small gusset on the tongue and only thin padding in the tongue and heel, yet it held onto the foot extremely well. The fit is snug, and notably every shoe we compared it to, from the Metaspeed Edge to the Cloudboom Echo 3 to the Vaporfly 3 and Endorphin Pro 3, offers more forefoot space. If you need extra room up front, try these on before racing in them.

How Far Can You Take It

We would call this a neutral racing shoe, not remarkably unstable but not a stability shoe either. In current shape, our tester raced a 10K in it and would not take it further than that distance right now; a half marathon feels plausible, and a marathon would likely require a long workout in them first to build confidence. Compared directly with a Vaporfly 3 20K race experience, the Cloudboom Strike sits in its own little category, meshing traits of several other racers together.

Buying Advice

At $280, the Cloudboom Strike costs more than many of its rivals, so it is worth a look if you can get your hands on a pair and try the snug fit first. It is best suited to runners who like a firmer, responsive ride with a gradual rocker, a locked-in race fit, and who mostly race shorter to mid distances. Runners who want a plush, heavily rockered shoe or generous forefoot room may be better served elsewhere.

Conclusion

The On Cloudboom Strike is a thoughtfully built racer with a unique insert-based plate placement, a firmer and responsive foam feel, and a gradual rocker that worked well over a 10K. Its snug fit and midfoot stability hitches are the main things to check before race day, but as a fast, well-crafted option it earns its place in a crowded field.