On Cloudultra Pro: Our Season-Long Review
The On Cloudultra Pro ($260) is one of the most impressively well-rounded trail shoes we’ve tested. In fact, we’d wear it every day if we weren’t so concerned about saving it for efforts that count. It’s max-cushioned yet legitimately lively—far more of a trail supershoe than a recovery tool—but the planted platform and locked-down upper keep it composed rather than tippy. It’s a standout pick for everything from short, fast efforts to mountainous 100-milers, and we won’t blame you if you want to wear it as your daily trainer, too. The catch is the outsole: traction is fine in dry conditions, but the lugs wear down quickly and don’t inspire much confidence in sustained wet, muddy, or snowy terrain.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
Best for
High-performance
Weight
1 lb. 3.4 oz.
Stack height
38.5/32.5mm
Upper
Engineered mesh
Midsole
PEBA & fiberglass plate
Outsole
Missiongrip (3.5 & 2.5mm)
Pros
Cons
On Cloudultra Pro
For this season's top models, see our guide to the Best Trail Running Shoes.
The On Cloudultra Pro is a max-cushioned shoe with exceptionally lively foam that delivers a class-leading blend of long-haul comfort and speed. It’s remarkably stable, too, thanks to a reasonable stack height (38.5 mm at the heel) and a midsole shape that cradles the foot. The result is excellent impact absorption without the overly tall, tippy feeling that can come with some max-stack designs. All told, this balanced cushioning makes the Cloudultra Pro one of the most well-rounded max-cushioned trail shoes I’ve ever worn. If I could, I’d wear it for everything: training and race day, slow runs and fast runs, technical and non-technical terrain.
While the On Cloudultra Pro doesn’t use a traditional rock plate, underfoot protection is still excellent. The combination of its fiberglass propulsion plate and supportive foam means sharp rocks and uneven terrain rarely feel intrusive. Importantly, the shoe manages this without completely disconnecting you from the trail—you still get enough ground awareness to feel confident through technical sections, rather than floating awkwardly above them.
That versatility is precisely why the Cloudultra Pro was my race shoe of choice for the 2025 season. I wore it at the Wy’east Trail Fest 28K on Mt. Hood, a fast course that mixes smooth singletrack, short road segments, and a demanding climb and descent on loose volcanic terrain. The cushion delivered a healthy dose of pop and protection without sacrificing stability when the footing got sketchy. Later in the season, I ran (and won!) the UTMB Whistler 100K in the shoe, and it held up remarkably well for nearly 12 hours—by the end of the race, I didn’t feel the cumulative pounding that shows up in less-cushioned trail running shoes, which says a lot about its fatigue-reducing comfort.
In the broader trail running shoe landscape, the Cloudultra Pro’s cushioning sits firmly in the top tier. It’s far more energetic and enduring than most EVA-based trail shoes, and it feels noticeably lighter and less bulky than many max-stack cruisers. The only trail shoe I’ve worn that surpasses it purely in cushioning is the Hoka Rocket X Trail, which essentially transplants a road supershoe midsole onto a trail platform. Compared to the Rocket X Trail, the Cloudultra Pro is slightly lower-stacked, less stiff, and more forgiving over long hours, making it a more well-rounded option for ultra distances, mixed-terrain routes, and runners who want maximum comfort without sacrificing speed.
The On Cloudultra Pro’s personality is like a race car that’s been detuned into a daily driver. With PEBA foam and a fiberglass plate, it delivers much of what you want from a top-tier racing shoe: quick turnover, a lively ride, and the ability to hold faster paces comfortably. But it doesn’t demand that you’re always hammering. Instead, it skips some of the more extreme race-shoe choices (like ultra-stiff carbon plates and featherweight minimal builds), trading a bit of razor-edge snap for comfort, control, and all-day wearability.
If the On Cloudultra Pro lasted a little longer (more on this in the durability section below), I’d honestly reach for it almost every day. It’s one of the rare shoes that works as both a race option and a recovery-run tool: it feels fast when you want to run fast, but it’s also smooth and forgiving when you’re just trying to cruise. Compared to other trail shoes I’ve worn, the Cloudultra Pro sits comfortably in the 90th percentile for responsiveness. The only models that feel more energetic are true road supershoes and the handful of trail designs that borrow that road-supershoe playbook outright, like the Hoka Rocket X Trail.
For how much cushion the On Cloudultra Pro packs underfoot, its stability is genuinely impressive. I’m not someone who needs a stability-focused trail running shoe to feel confident (I’d run trails in a road supershoe if the terrain made sense), but a stable platform is always a plus. The Cloudultra Pro delivers more composure than most shoes that also offer its level of cushioning and responsiveness.
A huge part of this confidence comes from the shoe’s foothold. The engineered mesh upper locks the midfoot and arch down extremely well, and the heel counter is soft yet secure. The heel sits noticeably low and cradled within the midsole geometry, which helps the whole setup feel planted rather than perched. And while some propulsion plates and aggressive rockers can make a shoe feel tippy, the Cloudultra Pro’s setup does the opposite, adding underfoot support and structure. On technical terrain, that combination of upper security and a well-supported midsole means my foot never feels like it’s swimming, sliding forward, or threatening to roll off the platform.
The best example of this was the Wy’east Trail Fest 28K on Mt. Hood, where the course includes a steep, technical descent through sandy, rocky, uneven volcanic terrain. In conditions where a highly cushioned shoe can start to feel squirrely or tippy, the Cloudultra Pro stayed predictable and confidence-inspiring: I always knew exactly where my foot was on the midsole, and I never felt unexpected lateral movement. Compared to other max-cushioned performance shoes, I find it notably more stable than the Hoka Mafate X and Hoka Rocket X Trail. It’s closer to the planted feel of something like The North Face Vectiv Enduris 4, but with a far more responsive, cushioned ride.
The On Cloudultra Pro offers plenty of grip for most trail running, but it’s not the most confidence-inspiring choice for truly sloppy conditions. The in-house Missiongrip outsole covers about 75% of the shoe with rubber, paired with a forked channel of exposed foam that runs down the middle. The lugs are relatively low-profile and widely spaced, measuring about 3.5 millimeters around the perimeter and 2.5 millimeters through the center. Out of the box, the rubber itself feels respectably sticky—on dry dirt and rock slabs, I didn’t notice a meaningful disadvantage compared to other quality outsoles I’ve used.
Where the shoe loses points is in sustained wet, muddy, or snowy conditions. The tread pattern doesn’t have much aggressive bite from the start, and unfortunately, the lugs on my pair started to noticeably wear down after just 100 or so miles. As a result, the Cloudultra Pro’s initial “good enough” traction can quickly fade into “not good enough.” I trust it on dry-to-mixed trail—hardpack, gravel, dust, and most technical terrain when conditions are reasonable—but I’m more hesitant to reach for it on heavy mud days, wet snow, or long stretches of greasy trail where deeper, more durable lugs make a clear difference.
When I took the On Cloudultra Pro out of the box, the first thing I noticed was the upper. It’s extremely light and airy, with a very open, engineered woven mesh and a few thin, exposed threads that initially made me nervous about tears or blowouts. But the more I wore the shoe, the clearer it became that the upper isn’t the weak link at all. After about 400 miles across a wide range of terrain, it’s picked up some cosmetic pilling, but no rips, holes, or meaningful damage.
The midsole has also held up surprisingly well. The foam still feels bouncy and responsive, which tracks with PEBA’s reputation for better longevity than cheaper foams like standard EVA. I have started to notice a slight “saddle” forming underfoot as the CloudTec channels compress, which is worth flagging if you’re hoping to rack up serious mileage in the shoe. Still, the overall build—stitching, fit, and midsole integrity—feels premium and intact.
Unfortunately, the outsole is the real durability issue, and it’s significant. The lugs wore down incredibly quickly, not just in my typical high-wear heel-strike zone, but across the entire bottom of the shoe. At this point, the outsole is close to bald, with lugs rounded down and nearly flush, even in parts of the forefoot where I rarely burn through tread. I count this as quite a bummer: The rest of the shoe feels like it has plenty of life left, but once the traction disappears, the Cloudultra Pro becomes far less trustworthy (and sometimes borderline useless) in wet conditions.
In terms of value, I’d still call the Cloudultra Pro a strong performer for the money. It offers such a top-tier blend of comfort and speed, and is one of the rare shoes that can genuinely handle almost anything. But outsole longevity is the catch, and it’s enough of a downside that I have to be strategic with how I use the shoe, saving it for key long runs, races, and drier conditions rather than grinding it down on everyday training miles.
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Longevity
Choosing durable outdoor gear and keeping it in use for longer is one of the best ways to reduce environmental impact. Our proprietary longevity rating assesses factors like overall build quality, materials, fabric denier, component durability, and real-world performance. A green check indicates that we expect the product to be long-lasting relative to its peers, a yellow check mark indicates average longevity, and a red X indicates a product that may have a limited lifespan.
Recycled Materials
Recycled materials are prevalent in outdoor gear, with nylon, polyester, wool, and down among the most common, but the composition varies widely. A green check mark indicates the product is made with a substantial amount of recycled materials (100% recycled or the core fabric that makes up most of the product is recycled), a yellow check means it contains a moderate to small amount of recycled materials, while a red X means there are no recycled materials in the product.
Bluesign Approved
Bluesign Technologies, based in Switzerland, operates a third-party textile management system that ensures materials are manufactured to strict environmental, chemical, and worker safety standards. A green check mark indicates a product is either a Bluesign Product (contains at least 90% Bluesign-approved fabrics and 20-30% Bluesign-approved accessories) or features a significant amount of Bluesign-approved materials. A yellow check mark means it uses some Bluesign-approved materials but less than the aforementioned category, and a red X means there are no Bluesign-approved materials in the product.
Responsible Manufacturing
This criterion evaluates a brand’s commitment to fair wages, safe working conditions, and reducing environmental impact through certifications and programs like Fair Trade Certified, Fair Wear Foundation, Worldwide Responsible Accredited Production (WRAP), and the Fair Labor Association, while also recognizing brands that manufacture primarily in the U.S. or Europe under strict labor and environmental regulations. A green check mark indicates a brand meets our responsible manufacturing criteria, while a red X means it does not.
Recycled and/or Reduced Packaging
Packaging can add significant waste to outdoor gear purchases, so many brands work to reduce its impact by using recycled materials, incorporating Forest Stewardship Council-certified paper products, and minimizing plastic and paper use. A green check mark indicates a brand uses recycled or reduced materials across all of its packaging, a yellow check indicates moderate or limited use of recycled or reduced packaging, and a red X indicates the brand does not make either of these efforts.
Resale and/or Recycling Services
Resale and recycling programs help keep outdoor gear in circulation longer and out of landfills, ranging from trade-in resale platforms that offer store credit to take-back initiatives that recycle products at the end of their usable life. A green check mark indicates a brand offers both resale and recycling programs, a yellow check mark indicates it offers one or the two, and a red X indicates it offers neither.
Carbon Footprint Tracking
This criterion evaluates whether a brand measures, reports, and works to reduce its greenhouse gas emissions using established frameworks such as the Higg Index, Greenhouse Gas Protocol, or The Change Climate Project. A green check mark indicates a brand publicly reports greenhouse gas emissions data, sets clearly defined reduction targets, and uses established tracking frameworks such as Higg or The Change Climate Project. A yellow check mark indicates the brand tracks emissions and outlines reduction goals but provides limited data, lacks science-based verification, or does not clearly report progress. A red X indicates the brand does not appear to track greenhouse gas emissions or provides so little information that its efforts cannot be verified.
Annual Impact Report
Annual impact reports provide transparency and accountability by outlining a brand’s sustainability efforts across areas such as material sourcing, greenhouse gas emissions, waste, water use, supply chains, and packaging. A green check mark indicates a brand publishes a detailed, brand-specific impact report that closely aligns with our sustainability criteria and leaves little room for ambiguity. A yellow check indicates a brand provides some relevant sustainability reporting but lacks detail in key areas or is covered only briefly within a parent company report. A red X indicates a brand does not regularly publish an impact report.
The On Cloudultra Pro is impressively light for how much cushion and protection it packs in. On paper, it’s listed at 1 pound 3.4 ounces, and my men’s size 11 came in at 1 pound 4.6 ounces on my scale. This is heavier than some shoes (the Nnormal Kjerag 02, for example, weighs 15.5 ounces for the pair), but lighter than most max-cushioned shoes.
On the trail, weight isn’t an issue. Even over long durations, I don’t feel like I’m dragging around extra shoe, and I don’t notice the kind of accumulated fatigue that heavier, bulkier max-cushioned models can bring. If anything, the Cloudultra Pro feels like it’s punching above its weight class in terms of how fast and efficient it can move. It’s one of the lightest trail running shoes I’ve used that still delivers this level of cushioning, comfort, and long-haul protection. For runners who want a shoe that feels race-capable without giving up ultra-distance comfort, its weight is a big part of what makes the package work.
The On Cloudultra Pro’s loosely woven engineered mesh upper is all about airflow. Breathability is excellent—I’ve never had issues with overheating, even in hot summer temps. That same open structure also means the shoe drains fast and dries quickly after getting wet; it doesn’t hang onto water the way more built-up uppers can. Debris protection is the one clear tradeoff. There’s no built-in gaiter, and with the loose weave, fine sand and grit can work their way in more easily than in a tighter upper. That said, even when I’ve ended up with a noticeable amount of debris in the shoe, it hasn’t caused rubbing or chafing.
I typically wear a men’s US 11 in running shoes, and that’s the size I chose in the On Cloudultra Pro. For me, the fit was perfect right out of the box—true to size in length and secure without feeling overly narrow, with no break-in period needed.
Despite a minimally cushioned upper, the Cloudultra Pro is exceptionally comfortable thanks to its secure lockdown that minimizes pressure points. The laces are the most aggressively ribbed ones I’ve ever used—almost to the point of being hard to fine-tune—but the upside is that once they’re set, they stay set. They don’t loosen, they don’t come untied, and On adds a simple elastic strap to tuck them under so nothing flops around or catches. The gusseted tongue is minimally padded but comfortable, with just enough cushion to prevent lace bite. Around the back, the heel counter is soft and flexible, sitting fairly low yet still delivering a secure, no-hot-spot hold that molds nicely to the foot.
La Sportiva Prodigio Pro ($225): Mountain-Ready Alternative
The Prodigio Pro is a head-to-head rival of the Cloudultra Pro. It’s similarly light for a max-cushion shoe, feels quick enough to race in, and stays composed when terrain gets rocky, steep, or off-camber. To discerning runners, the Prodigio Pro feels slightly less responsive—its supercritical foam is delightfully energetic, but it lacks the Cloudultra Pro’s high-end Pebax-and-plate snap. On the other hand, it features a much more capable outsole. The Vibram FriXion rubber is durable and sticky, offering significantly better traction than On’s Missiongrip in wet, muddy, or snowy conditions. If you want the poppiest, most race-ready ride for dry trails, go with the Cloudultra Pro; for the money, the Prodigio Pro is the better-value, more well-rounded mountain shoe. For more, read our review of the La Sportiva Prodigio Pro.
Mount to Coast H1 ($160): Poppy Daily Trainer
If you like the Cloudultra Pro’s lively personality but don’t want to spend $260, the Mount to Coast H1 is a smarter (and more affordable) daily driver. It’s easier to justify for everyday mileage—especially on gravel, dirt roads, and buffed-out trails—but it’s still tuned for distance, with long-lasting foam and a dual-lacing system that lets you open up the toe box without sacrificing midfoot hold. The tradeoff is the performance ceiling: The H1 doesn’t have quite the same Pebax-and-plate energy you get from the Cloudultra Pro, and it's far too squirrely on technical trails. Stick with the Cloudultra Pro for racing and long efforts when you want maximum bounce and stability, and choose the H1 when you want a reliable, fun trainer you can rack up miles on without worrying about cost or burning through the tread.
The On Cloudultra Pro is a max-cushion, PEBA-powered trail shoe that blends long-haul comfort with a legitimately poppy, race-capable ride. It’s impressively stable for its cushion, but the shallow lugs wear quickly and aren’t a great match for sustained mud, snow, or sloppy conditions.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
The La Sportiva Prodigio Pro is a rare do-it-all trail shoe. It boasts maximum cushion and is wildly energetic, yet genuinely grippy and stable. It's a high performer for just about any distance, speed, or terrain. Just be aware that the fit runs short and snug, and there’s no rock plate for extra underfoot armor.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
A lively road-to-trail crossover, the Mount to Coast H1 pairs a high-stack, responsive midsole with a lightweight upper and a dialed fit system. It excels on gravel roads, bike paths, and hard-packed dirt, but its unstable personality and slippery outsole compound struggle on technical trails.
Cushioning
Responsiveness
Stability
Traction
Durability
Sustainability
Is the Cloudultra Pro for You?
The On Cloudultra Pro is an excellent match for trail runners who want a fast, energetic shoe that still delivers top-tier comfort and stability. At $260, you’ll probably try to save it for speed work and race day, but good luck—it’s so cushioned and fun that it’s easy to start reaching for it on everyday runs, too. That planted-but-poppy ride makes it a strong option across a wide range of terrain and distances, from smooth, runnable 100Ks to short, mountainous courses where you still want some snap underfoot.
The key caveat is traction longevity. The Cloudultra Pro’s outsole wears quickly, and the lug design has limited bite once conditions turn wet and sloppy, so it’s not the shoe we’d grab for mud, snow, or sustained greasy trail. But if most of your miles are on dry-to-mixed terrain and you want a high-performance shoe that doesn’t beat you up over long hours, the Cloudultra Pro is one of the best tools for the job.
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