The On Cloudmonster is a neutral and all-round running shoe from On aimed at maximum cushioning and comfort for every workout. Whether you're planning a long run, a short recovery run or just your daily training run, the On Cloudmonster can always attract you. The On Cloudmonster is the superlative in terms of cushioning compared to the On Cloudflyer and the On Cloudstratus. This latest model from On has Max CloudTec cushioning, these are the largest CloudTec elements ever. This cushioning gives a soft landing and a lot of energy return. The Cloud elements, the "clouds" that you see in the sole, work together to distribute the pressure that arises during the impact of the landing over the entire foot. The CloudTec technology in the Cloudmonster works together with Helion superfoam and a custom Speedboard, which is a plastic plate, that provides stability and an explosive push-off to the forefoot. This push-off to the forefoot is also stimulated by the round shape of the sole. The upper of the On Cloudmonster is soft and pleasant. The thin shoe lip fits comfortably around the foot. The On Cloudmonster is made from more than 30% recycled materials. For example, the insole and the upper are made of recycled polyester.
The On Cloudmonster is a neutral and all-round running shoe from On aimed at maximum cushioning and comfort for every workout. Whether you're planning a long run, a short recovery run or just your daily training run, the On Cloudmonster can always attract you. The On Cloudmonster is the superlative in terms of cushioning compared to the On Cloudflyer and the On Cloudstratus. This latest model from On has Max CloudTec cushioning, these are the largest CloudTec elements ever. This cushioning gives a soft landing and a lot of energy return. The Cloud elements, the "clouds" that you see in the sole, work together to distribute the pressure that arises during the impact of the landing over the entire foot. The CloudTec technology in the Cloudmonster works together with Helion superfoam and a custom Speedboard, which is a plastic plate, that provides stability and an explosive push-off to the forefoot. This push-off to the forefoot is also stimulated by the round shape of the sole. The upper of the On Cloudmonster is soft and pleasant. The thin shoe lip fits comfortably around the foot. The On Cloudmonster is made from more than 30% recycled materials. For example, the insole and the upper are made of recycled polyester.
The On Cloudmonster is a neutral and all-round running shoe from On aimed at maximum cushioning and comfort for every workout. Whether you're planning a long run, a short recovery run or just your daily training run, the On Cloudmonster can always attract you. The On Cloudmonster is the superlative in terms of cushioning compared to the On Cloudflyer and the On Cloudstratus. This latest model from On has Max CloudTec cushioning, these are the largest CloudTec elements ever. This cushioning gives a soft landing and a lot of energy return. The Cloud elements, the "clouds" that you see in the sole, work together to distribute the pressure that arises during the impact of the landing over the entire foot. The CloudTec technology in the Cloudmonster works together with Helion superfoam and a custom Speedboard, which is a plastic plate, that provides stability and an explosive push-off to the forefoot. This push-off to the forefoot is also stimulated by the round shape of the sole. The upper of the On Cloudmonster is soft and pleasant. The thin shoe lip fits comfortably around the foot. The On Cloudmonster is made from more than 30% recycled materials. For example, the insole and the upper are made of recycled polyester.
The On Cloudmonster is a neutral and all-round running shoe from On aimed at maximum cushioning and comfort for every workout. Whether you're planning a long run, a short recovery run or just your daily training run, the On Cloudmonster can always attract you. The On Cloudmonster is the superlative in terms of cushioning compared to the On Cloudflyer and the On Cloudstratus. This latest model from On has Max CloudTec cushioning, these are the largest CloudTec elements ever. This cushioning gives a soft landing and a lot of energy return. The Cloud elements, the "clouds" that you see in the sole, work together to distribute the pressure that arises during the impact of the landing over the entire foot. The CloudTec technology in the Cloudmonster works together with Helion superfoam and a custom Speedboard, which is a plastic plate, that provides stability and an explosive push-off to the forefoot. This push-off to the forefoot is also stimulated by the round shape of the sole. The upper of the On Cloudmonster is soft and pleasant. The thin shoe lip fits comfortably around the foot. The On Cloudmonster is made from more than 30% recycled materials. For example, the insole and the upper are made of recycled polyester.
Last updated at 03/21/2026 15:26:46
On Running Cloudmonster Iron Hay
Delivery $34.95
originally posted on REI
Had to back off on my training to cure sacroillitis in both hips, but was looking for a transition shoe to help me get back up and moving again.Needed max cushioning to control discomfort and tried Hoka Clifton first. Loved the wide stance, and soft plush ride but it was too mushy. Full disclosure... there was also a vanity element to ditching the Clifton... to my observation, it has become the unofficial footwear choice of senior citizens. Great comfort but just not willing to be part of that crowd yet.Was a little put off by the price of the Cloud monster... $170.00 seemed about $20.00 too much for this product but, it delivered on the promise of comfort and performance. Within 24 hours my pain symptoms disappeared and I was back on the roads... at a much ... MoreHad to back off on my training to cure sacroillitis in both hips, but was looking for a transition shoe to help me get back up and moving again.Needed max cushioning to control discomfort and tried Hoka Clifton first. Loved the wide stance, and soft plush ride but it was too mushy. Full disclosure... there was also a vanity element to ditching the Clifton... to my observation, it has become the unofficial footwear choice of senior citizens. Great comfort but just not willing to be part of that crowd yet.Was a little put off by the price of the Cloud monster... $170.00 seemed about $20.00 too much for this product but, it delivered on the promise of comfort and performance. Within 24 hours my pain symptoms disappeared and I was back on the roads... at a much slower pace than usual, but moving forward.My one complaint/observation is that if a product is going to carry a premium price, there is no excuse not to use premium materials. Please upgrade the sockliner to ortholite. I pulled, trimmed and replaced the original with the Clifton sockliner and it made a notable difference on step in feel.I have a few other pair of On shoes that I wear strictly wear just for casual, but the cloud monster if finally the first On product that I can actually run in. I strongly recommend this product and look forward to some productive miles to come.
originally posted on nordstrom.com
These super-buoyant runners are fantastic for long duration walks or runs. I have found myself not wanting to take them off. That said, there are a couple of things that you will want to know before buying them.1) They run about a half size small, so make sure to try them on and get a good feeling for them.2) Their heel incline is higher than most shoes and will work your mid-calves a little differently, so be prepared to “feel it”.3) They are a little “squishy” and provide a feeling of a little more horizontal movement than more stiff runners.In my case, the pros have caused me to wear the Cloudmonsters almost non-stop.
originally posted on REI
Bought this almost a year and shoes were really comfortable right out the box. upper is made of really good materials. Shoe does gives you the bounce on the runs. For the bad side but i a little disappointed with the durability of these. I run + walk in these those shoes and do ~ 10 miles a week, so i have done around 400+ miles in these shoes and i can see good amount of wear on the outer sole. I was expecting more from a $180 shoes. my lastshoe was brooks gts which lasted little longer these.
| Heel Stack | 34 mm |
| Forefoot Stack | 28 mm |
| Heel-Toe Offset | 6 mm |
On Running Cloudmonster Iron Hay
Delivery $34.95
Had to back off on my training to cure sacroillitis in both hips, but was looking for a transition shoe to help me get back up and moving again.Needed max cushioning to control discomfort and tried Hoka Clifton first. Loved the wide stance, and soft plush ride but it was too mushy. Full disclosure... there was also a vanity element to ditching the Clifton... to my observation, it has become the unofficial footwear choice of senior citizens. Great comfort but just not willing to be part of that crowd yet.Was a little put off by the price of the Cloud monster... $170.00 seemed about $20.00 too much for this product but, it delivered on the promise of comfort and performance. Within 24 hours my pain symptoms disappeared and I was back on the roads... at a much ... MoreHad to back off on my training to cure sacroillitis in both hips, but was looking for a transition shoe to help me get back up and moving again.Needed max cushioning to control discomfort and tried Hoka Clifton first. Loved the wide stance, and soft plush ride but it was too mushy. Full disclosure... there was also a vanity element to ditching the Clifton... to my observation, it has become the unofficial footwear choice of senior citizens. Great comfort but just not willing to be part of that crowd yet.Was a little put off by the price of the Cloud monster... $170.00 seemed about $20.00 too much for this product but, it delivered on the promise of comfort and performance. Within 24 hours my pain symptoms disappeared and I was back on the roads... at a much slower pace than usual, but moving forward.My one complaint/observation is that if a product is going to carry a premium price, there is no excuse not to use premium materials. Please upgrade the sockliner to ortholite. I pulled, trimmed and replaced the original with the Clifton sockliner and it made a notable difference on step in feel.I have a few other pair of On shoes that I wear strictly wear just for casual, but the cloud monster if finally the first On product that I can actually run in. I strongly recommend this product and look forward to some productive miles to come.
These super-buoyant runners are fantastic for long duration walks or runs. I have found myself not wanting to take them off. That said, there are a couple of things that you will want to know before buying them.1) They run about a half size small, so make sure to try them on and get a good feeling for them.2) Their heel incline is higher than most shoes and will work your mid-calves a little differently, so be prepared to “feel it”.3) They are a little “squishy” and provide a feeling of a little more horizontal movement than more stiff runners.In my case, the pros have caused me to wear the Cloudmonsters almost non-stop.
Bought this almost a year and shoes were really comfortable right out the box. upper is made of really good materials. Shoe does gives you the bounce on the runs. For the bad side but i a little disappointed with the durability of these. I run + walk in these those shoes and do ~ 10 miles a week, so i have done around 400+ miles in these shoes and i can see good amount of wear on the outer sole. I was expecting more from a $180 shoes. my lastshoe was brooks gts which lasted little longer these.
I've been running in my On Cloudmonster shoes for over three months and have genuinely enjoyed racking up my daily miles in them. As you would expect by how they look, they are plush and extremely comfortable to run in. However, with an average of 20 miles of road/sidewalk running per week, I've worn this pair of shoes beyond proper functionality and support. After only three months, the rubber outsole has deteriorated rapidly, while the foam midsole continues to lose its' rebound, leaving the shoes not level in a static state.Being a heavier bodybuilder at 170 lbs, I would attribute the quick wear and tear to my heavy, heel-pounding stride beating down on each shoe with every step. However, one possible design oversight on many On running shoes is the use of ... MoreI've been running in my On Cloudmonster shoes for over three months and have genuinely enjoyed racking up my daily miles in them. As you would expect by how they look, they are plush and extremely comfortable to run in. However, with an average of 20 miles of road/sidewalk running per week, I've worn this pair of shoes beyond proper functionality and support. After only three months, the rubber outsole has deteriorated rapidly, while the foam midsole continues to lose its' rebound, leaving the shoes not level in a static state.Being a heavier bodybuilder at 170 lbs, I would attribute the quick wear and tear to my heavy, heel-pounding stride beating down on each shoe with every step. However, one possible design oversight on many On running shoes is the use of relatively thin rubber outsoles (especially compared to equivalent running shoes from Adidas and Hoka). Perhaps if On used thicker, more resilient material for their outsoles, their shoes would last a little longer and rack up more miles before they fail, as all running shoes do.In summary, the On Cloudmonster are stylish and comfortable running shoes that look good, feel good and are bound to make many runners go the extra mile. Unfortunately, for the heavier runners among us, they may not hold up for as much as you'd expect, given their price tag.††For lighter weight runners, your mileage may vary.
I have previously worn Hoka Bondi 4's and 7's for running/road work, and had gone to REI for a pair of 8's, all sold out, so I started trying on lots of running shoes and brands, going for what fit right and 'felt' the best for me. I tried on a pair of the ON Cloudmonsters and knew right away that they would work for my foot (wide forefoot, regular heel and semi-high arch). Beautifully light in weight, the uppers are awesome at wicking away moisture and heat, the soles are densely cushioned and stable without ever being mushy. They are rockered somewhat, and have that propel-you-into-your-stride feel, a functionally great design. They are wide enough even with an 11 regular, there is no side-to-side movement, the flat laces and minimalist tongue hold the foot snugly ... MoreI have previously worn Hoka Bondi 4's and 7's for running/road work, and had gone to REI for a pair of 8's, all sold out, so I started trying on lots of running shoes and brands, going for what fit right and 'felt' the best for me. I tried on a pair of the ON Cloudmonsters and knew right away that they would work for my foot (wide forefoot, regular heel and semi-high arch). Beautifully light in weight, the uppers are awesome at wicking away moisture and heat, the soles are densely cushioned and stable without ever being mushy. They are rockered somewhat, and have that propel-you-into-your-stride feel, a functionally great design. They are wide enough even with an 11 regular, there is no side-to-side movement, the flat laces and minimalist tongue hold the foot snugly and comfortably in place. And they look sharp, too. I've been asked a lot about who makes the shoes and I make sure they know who and that, at least for me, you do get what you pay for. Well done, many thanks!
Overall, this is a great shoe. It has a ton of cushion but is also very lightweight. It's a versatile shoe that can be used for slower long runs or faster tempo runs. It can be a good option for the marathon distance if you don't want to pay exorbitant "super shoe" prices. My only complaint is the shoe loses its plush, cushioned feel at about 200 miles. I'm at 235 miles now, and the shoes are almost done. Given the premium price, I wish they lasted longer.
- Large amount of cushion for the heel and the midsole- Kink in the midsole making the forward rolling characteristic very noticeable- Great for easy runs, recovery runs and walking long distances- Tough to pick up pace as shoe is less responsive- The upper of the shoe creases and folds while using it, taking away from its aesthetic- Also, the upper was less snug than I preferred.- I felt my foot had a decent amount of room to move around in the shoe, which I personally do not like- Due to the excess room in the shoe, walking downhill would make me feel unstable as my foot would slide around in the shoe- Was not too comfortable using these shoes while running on the treadmill. Had to run slower than my actual pace to ensure safety
Full disclosure: a member of my family works for On Running.I've been running in Hoka shoes (mostly Bondis and Cliftons) for 12 years. As a Clydesdale runner, I definitely tend toward maxium cushioning shoes.When the time came for me to retire my Clifton 7s, a family member recommended the Cloudmonster to me. Truth be told, I have always thought of On as more of a "lifestyle" shoe company. (Which is slightly ironic, because they have one of the top pro track teams in the world.) But I hoped to be swayed by this shoe recommendation.I paid the (very high) full retail price at my local retailer (not REI in this case) for this shoe in the "Undyed-White" colorway (which looks amazing, I might add, but is sadly not available at REI). The moment I slipped it on -- OH ... MoreFull disclosure: a member of my family works for On Running.I've been running in Hoka shoes (mostly Bondis and Cliftons) for 12 years. As a Clydesdale runner, I definitely tend toward maxium cushioning shoes.When the time came for me to retire my Clifton 7s, a family member recommended the Cloudmonster to me. Truth be told, I have always thought of On as more of a "lifestyle" shoe company. (Which is slightly ironic, because they have one of the top pro track teams in the world.) But I hoped to be swayed by this shoe recommendation.I paid the (very high) full retail price at my local retailer (not REI in this case) for this shoe in the "Undyed-White" colorway (which looks amazing, I might add, but is sadly not available at REI). The moment I slipped it on -- OH THE COMFORT! I hadn't gotten this excited about the comfort of a sneaker since the Nike Air Huaraches from the mid-90s. On top of that, despite my wide, high-volume feet, regular sizing worked out for me in both my actual size as well as my "half-size up" size. My hopes were high.But that's where the excitement ends. I did 3 5k runs in these, and my reaction each time was the same: they feel dead. I felt like I was doing extra work on each stride -- surprising, considering how light they are. Now, I'm not one to get too hung up on "energy return" and similar buzzwords, but I just never felt like these shoes were really helping to propel me forward, and as each run went on, the deadness progressively killed my motivation.So, despite really liking the comfort and aesthetics of this shoe, I returned them after a week, and went back to Clifton 9s. They may not look as good as the Cloudmonsters, but for my intended use as a daily running shoe, the Hokas continue to perform reliably for me.
I recently purchased a pair of On Cloudmonster shoes, and I must say they have exceeded my expectations. These shoes offer exceptional support and comfort. The level of cushioning is amazing, providing a plush feel with each step. I appreciate how well they adapt to my feet, ensuring a snug fit without any discomfort. Whether I'm walking or running, the Cloudmonster shoes provide the right balance of stability and flexibility. Overall, I highly recommend these shoes for anyone seeking excellent support and comfort in their footwear. I would also get a size up ½ size from your regular shoe size.
Yes, I threw out the rulebook on this ON model. The truth is after a 5K shakeout of this shoe during a demo run I knew it would be a go to shoe for a marathon the following week. The shoe performed up to the expectations. I had less hip fatigue, no issue adjusting to the extra stack height, and the energy return I wanted after mile 18 was present. Big game changer. I run in a 4mm drop road shoe normally and this plush bed did not require much adjustment. On seems to have reimagined the performance of Helion since this shoe did not feel rigid I felt like I was bounding w/o needing to change my stride. I ran downhills with ease and the outsole was nimble and felt secure. No rain or slickness so I cant speak to that condition yet. The upper was fine, breathable etc. I ... MoreYes, I threw out the rulebook on this ON model. The truth is after a 5K shakeout of this shoe during a demo run I knew it would be a go to shoe for a marathon the following week. The shoe performed up to the expectations. I had less hip fatigue, no issue adjusting to the extra stack height, and the energy return I wanted after mile 18 was present. Big game changer. I run in a 4mm drop road shoe normally and this plush bed did not require much adjustment. On seems to have reimagined the performance of Helion since this shoe did not feel rigid I felt like I was bounding w/o needing to change my stride. I ran downhills with ease and the outsole was nimble and felt secure. No rain or slickness so I cant speak to that condition yet. The upper was fine, breathable etc. I normally have a lot of perspiration and my shoes can get "swampy" but that was not the case. But because the outside temp.s were in the 60's it factored in to this too. When in gets humid and in the 80's that will be the real test of the upper. My heel was rock solid no fit issues in the width or instep. Definitely a shoe for runs in the 3 hour plus range for me. I will always rotate through different shoes (Newton BOCO AT, Newton Fate, Hoka Mafate, Atreyu) and now add this to the mix. I prefer feel over float but this On is on the top of my list because right out of the gate my reaction was "Wow, this is a comfortable shoe."
| Heel Stack | 34 mm |
| Forefoot Stack | 28 mm |
| Heel-Toe Offset | 6 mm |
