The release of the original Cloudmonster felt like a turning point for On. Up until then, the brand had certainly built a loyal following, but the Cloudmonster was the first model that truly signaled On’s arrival as a serious performance running company. It wasn’t just a good-looking shoe with distinctive styling—it actually ran well.
For many runners, that launch marked the moment On moved beyond being viewed primarily as a lifestyle brand and stepped fully into the performance conversation.
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The Cloudmonster 2 continued that momentum, though not without some debate in running circles. While it refined the foam and platform, there were still plenty of runners who swore by the feel of the original. We found the Cloudmonster 3 to be something of a marriage between the first two versions, taking what runners loved about each and blending them into one package.
Now comes the Cloudmonster 3 Hyper. Rather than simply updating the Cloudmonster 3, On has transformed it into a true super trainer. With a refined midsole construction, a higher stack height, and a significant weight reduction, this shoe is designed to handle daily mileage while adding a little extra excitement to every run.
Looks:
It’s rare for an On shoe not to look great. There’s a reason you’ll see On gracing the feet of plenty of people—whether they’re out for a run or nowhere near a starting line. The brand has managed to create a look that’s distinctive without feeling like it’s trying too hard, and the Cloudmonster 3 Hyper is no exception.
The men’s version comes in four colorways, while the women’s gets five, with each offering a pretty approachable take on the shoe’s performance-focused design. Visually, it carries some of the same DNA we’ve seen from the Cloudrunner line, including the slanted “On Running” branding along the outside of the shoe.
Construction:
One of the most impressive changes is the weight reduction. The Cloudmonster 3 Hyper sheds over an ounce compared to the standard Cloudmonster 3 while simultaneously adding multiple mm of stack height. That’s not an easy feat, and I found it noticeable on the run.
Specs:
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- Weight: 9.4 oz (M9);
- Stack: 39.5 mm / 33.5 mm
- Drop: 6mm
Upper:
The upper uses a 44% recycled engineered mesh that is lightweight and breathable. There honestly isn’t a lot to dissect here—and that’s a compliment.
The mesh provides plenty of airflow for summer miles while locking the foot down well through the midfoot. The tongue may be seen as a little shorter than some runners prefer. I didn’t really experience an issue, but another of our reviewers called it out in passing so we thought it may be worth mentioning if this sort of thing matters to you.
Midsole:
The Cloudmonster 3 Hyper uses a full-length Helion HF superfoam paired with On’s signature CloudTec pods (no plate!), and the result is one of my favorite midsoles the company has produced.
At this point, runners should probably know what to expect from On. Despite the “Cloud” branding, their shoes have traditionally leaned toward the firmer side of the spectrum. Personally, I’ve actually come to appreciate that style of shoe more as I’ve gotten older.
The Cloudmonster 3 Hyper still has that familiar On character, but it softens things just enough. Both reviewers found it noticeably more forgiving than many of the brand’s previous models without ever venturing into marshmallow territory. Instead, it finds a really nice middle ground where there’s enough cushioning for long miles while retaining the firmness needed for propulsion.
For a shoe sitting just shy of the 40mm mark, it also feels surprisingly grounded. We find many max-cushion trainers becoming so soft that they feel unstable, requiring extra effort just to access the rebound they’re designed to provide. Other brands solve that problem by adding a carbon plate.
On doesn’t with this shoe. Instead, the geometry and foam work together to create a naturally stable ride with plenty of energy return—all without a plate.
We’ve come around on carbon-plated shoes over the past few years, but neither of our reviewers want one in every shoe we own. For everyday training, there’s something refreshing about getting a responsive ride that doesn’t rely on a rigid plate. It delivers propulsion without leaving our legs feeling overly worked after easy or moderate mileage.
Outsole:
One of the things that has always separated On from just about every other running shoe company is that they haven’t abandoned the CloudTec design language, even as their shoes have become more performance-oriented. Those signature hollow pods remain front and center, and with them comes the inevitable question: “Do all those gaps actually grip?” and “Don’t those holes get rocks in them?”
After years of running in On shoes, I think the answer is pretty straightforward. Unless you’re regularly running technical trails or gravel, it’s largely a non-issue. The outsole uses rubber where it matters most, and the CloudTec cavities don’t seem to detract from traction in the types of environments this shoe was designed for.
We came away pretty impressed with the overall design in this shoe. There’s enough rubber to inspire confidence without adding unnecessary weight—an important balancing act on a high-stack trainer.
Most of my testing took place during the dry heat of summer, so we weren’t able to truly put the outsole through a classic Oregon rain test. I personally made a point of seeking out a few sprinkler-soaked sidewalks (scientific testing at its finest), and traction remained solid without any unexpected slipping. That’s obviously not the same as logging miles through months of wet pavement, but it was an encouraging – even if lacking in the testing department.
Overall Impression:
We’ve generally enjoyed running in On shoes over the years. They consistently look great, and once we accept what they are—a slightly firmer ride than many competitors—we find ourselves appreciating them for exactly that. The Cloudmonster 3 Hyper, though, feels like something different.
It sort of came out of nowhere and ended up becoming, for both reviewers, one of the biggest surprises we’ve run in this year. It’s comfortable and manages to a solid amount of cushioning without relying on either a carbon plate or an overly soft ride.
Major kudos to On on this one.
