2025 was a quiet year for On. A few releases came and went, and nothing really landed, bar the Lightspray, which will change uppers in the running shoe world for the future, I’m sure! But 2026 is a different story.
The On Cloud Monster 3 Hyper dropped in April 2026, and straight away it felt like On had come back with something worth talking about. This is a shoe built for everyday running, tempo work, long runs with reps or progressions, and even race day for the kind of runner who wants performance without a carbon plate underfoot.
In this review, we’re going to break down who the Cloud Monster 3 Hyper is for, what’s new in the midsole, how it rides, and how it stacks up against some of the other shoes sitting in the same space right now.
Who Is the On Cloud Monster 3 Hyper For?
This is always the first question worth asking, because not every shoe is for every runner, and the Monster 3 Hyper is no exception.
If you’re someone who prefers a more grounded, connected feeling on your easy days, this shoe is going to feel right at home. In a market where everything is trending towards ultra-soft, sink-into-the-midsole cushioning, On has gone a different direction. The Monster 3 Hyper sits on the firmer end of the spectrum, and that’s intentional.
It’s also a compelling option for the three-to-five-hour marathoner who wants to race in something fast and light but doesn’t want a carbon plate. There’s a real case to be made for plate less racing, especially over longer distances. You get more natural flexion through the foot, a slightly more forgiving feel over time, and for some runners, it’s just more comfortable to be in something that works with your foot rather than directing it.
In terms of training use, I’d be reaching for this shoe on steady long runs, threshold intervals of ten minutes or more, and any session where I want a bit of zip without pushing into full race day territory.
What’s New in the On Cloud Monster 3 Hyper?
The biggest update in the Cloud Monster 3 Hyper is the midsole. On has now run the Helion HF foam all the way through the shoe, from heel to forefoot, and it makes a noticeable difference.
The Hyper 2 was a solid shoe, but there was a slightly odd transition through the midfoot where the Pebax foam changed character. Depending on your foot strike, you might not have even noticed it, but if you were landing heel first or just short of the rocker, the ride could feel inconsistent. That issue is gone in the three.
Now with the Helion HF running the full length of the midsole, the ride is seamless. The way I describe it to people in store: a great shoe should feel like you’ve got nothing on. With the Hyper 2, I could clearly feel where the foam changed. With the three, that’s completely gone. It just flows.
And the price only went up $10. For extra foam you’re getting through that midsole, that’s a genuinely good deal.
Midsole Construction and Ride Feel
The Helion HF is a PEBA-based foam, think of it as On’s version of the performance foams you’ll find in top-end shoes from other brands. It’s lively and responsive, but it’s not the deeply soft, compression-heavy feel that most shoes are chasing in 2026.
You don’t sink into this shoe. It pushes back. And sitting underneath that Helion HF layer is the CloudTech cushioning, the pods you’ll recognise as part of On’s DNA. That layer is there for durability, a touch of firmness, and honestly a bit of a safety net. It prevents you from bottoming out on the Helion HF on harder efforts or heavier impact.
The stack height sits at 39.5mm in the heel and 33.5mm in the forefoot, giving you a 6mm drop. That’s on the lower side compared to a few other options in this category, which contributes to that more natural, grounded feel underfoot.
There’s also a worth-mentioning point around stability. Because the Helion HF is firmer, overpronation is less likely to cause a problem through the midfoot. You can’t really compress your way into trouble. That said, there is a cut-out through the midfoot of the shoe, so if you’re a significant heel striker coming in wide, you may notice a little movement through that area.
No Carbon Plate - Is That Actually a Good Thing?
For a lot of runners, the answer is yes.
The plate less design gives the shoe noticeably more flex through the forefoot than you’d get from a plated option in the same category. The Helion HF is still stiff up front, so it’s not like running in a neutral trainer, but compared to shoes with a full-length plate, there’s a more natural movement through the foot.
For long races, that matters. The further you go, the more a rigid plate can start to fight your foot rather than help it. Going plate less on a marathon or ultra means your foot gets to move the way it wants to for the full duration, and the Monster 3 Hyper still has enough performance in the foam to keep you rolling fast.
Outsole and Durability
The outsole is very similar to the Hyper 2, which is a good thing. On has kept the black rubber in the forefoot and heel for durability and traction and cut it away through the midfoot to save a bit of weight. It handles wet surfaces well, on tiles out the front of the store it felt confident and grippy without any issues.
Upper Fit and Comfort
On consistently nails their uppers, and the Monster 3 Hyper is no exception. The lacing locks you in well through the midfoot, the heel hold is secure, and through the toe box there’s enough room to let your foot spread naturally. No cramped toes, no hot spots, no blisters.
I’ve worn this shoe on a run and then kept it on all day after (not that I’d recommend doing that to your running shoes!) and had zero issues. It’s the kind of shoe that disappears on your foot. If you’re planning to use it for a half marathon, marathon, or a long training run, comfort is not going to be a concern.
Comfort sometimes gets overlooked when we’re shopping for performance shoes. We’re looking at foam compounds and plates and carbon geometry, and we forget to ask: does this shoe feel good? The Monster 3 Hyper does.
How Does the Cloud Monster 3 Hyper Compare to Its Competitors?
A few shoes worth comparing to if you’re shopping in this category:
ASICS Super Blast 2 vs 3 - The Super Blast 2 is probably the closer comparison to the Monster 3 Hyper. Both sit on the firmer, more responsive end of the spectrum. The Super Blast 3 has moved in a slightly different direction, so if you’re cross-shopping, try the two first.
Mizuno Neo Vista - A reasonable alternative in terms of ride character, but a different shoe overall.
Saucony Endorphin Speed - If you’re looking at the Endorphin Speed at around $300, it’s worth knowing the Monster 3 Hyper is sitting at $330. For that extra $30, you’re getting a meaningful step up in foam quality and overall ride experience.
Any Cons?
Honestly, it’s hard to find genuine faults with shoes these days — they’re all so well made. The main one for me is simple: in a world of increasingly soft shoes, the Monster 3 Hyper is still on the firmer side. That’s not a flaw in the shoe; it’s a design choice. But if you come in after a heavy training block feeling beaten up, you might find yourself reaching for something plusher.
For me personally, this shoe works best two days a week, steady threshold intervals and a pick-up long run. It’s not my go-to easy day shoe. But for runners who genuinely prefer a firmer feel, none of that applies. The right shoe is different for everyone.
Final Thoughts on the On Cloud Monster 3 Hyper
The Cloud Monster 3 Hyper is a genuinely good shoe, and it’s a significant step forward from the two. The full-length Helion HF midsole fixes the biggest issue of the previous version, the upper is excellent, and for a plate less performance shoe, it offers a lot.
If you’re a runner who wants something fast and purposeful without committing to a carbon plate, whether that’s for training, racing, or both, this shoe is worth trying on. And if you prefer a firmer, more connected feel to the softer options dominating the market right now, this might just be exactly what you’ve been looking for.
Once you find your groove in this shoe, it works well. You just have to give it a chance to click.
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Got questions? Drop them in the comments on our YouTube review or come in and chat to the team.
Riley Kilham
Riley is the General Manager at Run Havoc and brings hands-on experience from years of triathlon, running events, and coaching. He writes about training, performance, and finding the right gear, combining real-world insight with a passion for helping others get the most out of their movement.
