Sale+8
Cloudmonster 1
On Cloudmonster 1
Black | Eclipse
$139$201
13 colors
230 sold · 3 days
On Cloudmonster 1
Every colorway. Every size. Up to 30% off. This is the only place in the US built exclusively around the Cloudmonster. Shop the original that started it all and get it delivered in 10 to 14 working days, guaranteed.
13 styles
Sale
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Cloudmonster 1
On Cloudmonster 1
Cerulean | Ice
$155
13 colors
153 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
Dew | Blonde
$150
13 colors
153 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
Flint | Black
$155
13 colors
155 sold · 3 days
Sale+8
Cloudmonster 1
On Cloudmonster 1
Glacier | Alloy
$145$202
13 colors
199 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
Gobi | Lily
$153
13 colors
153 sold · 3 days
Trending+8
Cloudmonster 1
On Cloudmonster 1
Ivory | Creek
$148
13 colors
90 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
Ivory | Glacier
$154
13 colors
72 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
Pearl | Ivory
$154
13 colors
87 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
Steel | Eclipse
$152
13 colors
111 sold · 3 days
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Cloudmonster 1
On Cloudmonster 1
White | Glacier
$149
13 colors
128 sold · 3 days
+8
Cloudmonster 1
On Cloudmonster 1
White | White
$155
13 colors
108 sold · 3 days
+8
Cloudmonster 1
On Cloudmonster 1
Black | Black
$150
13 colors
153 sold · 3 days
Up to 30% OffAuthenticity GuaranteedFree Shipping Over $90Free 30-Day Returns10 to 14 Working Day Delivery
The Original Monster Is Here and It Is On Sale
Up to 30% Off | Free Shipping Over $90 | Free 30-Day Returns
You already know what the Cloudmonster 1 is. That chunky Swiss-built runner with the wild CloudTec pods on the bottom that somehow makes you feel like you could run forever. The one that changed what On was all about. We carry every colorway, every size, and we ship it straight to your door anywhere in the US in 10 to 14 working days. No waiting around. No third-party sellers. Just the real thing at the best price you will find online.
30%
Off retail price
4–7
Day US delivery
100%
Authentic, guaranteed
30d
Free returns
Authenticity Guaranteed
Every pair sold through www.oncloudmonster.com is 100% authentic On product. We do not sell fakes, refurbs, or mystery stock. What you see is exactly what arrives at your door.
Up to 30% Off
Real markdowns on real On Cloudmonster 1 pairs. No coupon codes needed. Discount is already applied at checkout.
Free Shipping Over $90
Order over $90 and shipping is on us. Every time. We deliver to all 50 states including Alaska and Hawaii.
10 to 14 Working Day Delivery
Order today and your Cloudmonsters arrive in 10 to 14 working days. We ship from US-based fulfillment so your wait is short and your tracking is real.
Free 30-Day Returns
Not the right fit? Wrong colorway? Send them back within 30 days for a full refund. No restocking fees. No hoops to jump through. Just easy.
Why Runners Choose It
Why Everyone in the US Is Still Buying the Cloudmonster 1
The Cloudmonster franchise is now on its third generation. On dropped the Cloudmonster 2, the Hyper, and the Cloudmonster 3. But runners across the country keep coming back to the original. Because the Cloudmonster 1 nailed something that is genuinely hard to get right. It is cushioned enough to protect your knees on those long Sunday runs through Central Park or along the Chicago Lakefront but it is springy enough that you actually want to push the pace when your legs feel good.
That is the Monster CloudTec technology doing its thing. The oversized cloud pods compress on every landing and lock together at toe-off to launch you forward. It does not feel like running on a marshmallow. It feels like running on something alive. Combine that with the Helion superfoam midsole and the Speedboard nylon plate and you have a shoe that works harder with every single stride you take.
We carry the full lineup right here. Men, women, all colorways, all sizes. And right now you can grab yours for up to 30% off the regular retail price. Free shipping when you spend over $90 and free returns for 30 days if anything is not right. This is the easiest decision you will make today.
What You Get
What Makes the Cloudmonster 1 Worth Every Dollar
Monster CloudTec Cushioning
The biggest cloud pods On has ever built. They compress on impact and lock together at toe-off for a ride that is both protective and explosive. No other shoe in this price range does both this well.
Helion Superfoam Midsole
Double the Helion foam of any previous On shoe. Soft enough for recovery days and responsive enough that you can push when you feel good. It adapts to you, not the other way around.
Speedboard Propulsion Plate
A nylon Speedboard embedded inside the midsole stores energy as you land and releases it at toe-off. That is why the Cloudmonster 1 feels faster than it looks. Every step gets a little boost.
Rocker Geometry
The curved midsole shape rolls you from heel to toe without you having to think about it. Less effort per stride. Less fatigue late in the run. Your legs will thank you at mile 15.
Lightweight Build at 9.7 oz
It looks massive. It weighs less than most max-cushion shoes on the market. That combination is exactly why American long-distance runners adopted this shoe so fast and never let it go.
Recycled Polyester Upper
Breathable, durable, and built with recycled materials. Performs just as well in summer heat across the South as it does on crisp fall mornings in New England. The upper disappears on your foot the way a great upper should.
The Cloudmonster 1 runs a little small, especially in the toebox because of the rockered forefoot. The unanimous advice from US runners is to go up half a size from your normal running shoe size. If you are a mens 10, order a 10.5. Between sizes? Size up every time. Not sure? Check our size guide or reach out before you order and we will sort it for you.
Who It Is For
Is the Cloudmonster 1 the Right Shoe for You
If any of these sound like you, the answer is yes.
You Put In Real Mileage
Training for a half marathon, a full marathon, or just logging consistent 30 to 50 mile weeks? The Cloudmonster 1 was built for your life. It handles back to back training days better than almost anything else at this price.
Your Legs Are Wrecked by Mile 10
The rocker geometry and Monster CloudTec cushioning do a lot of the mechanical work for you. Runners who used to hit a wall at mile 10 or 12 report that the Cloudmonster 1 keeps them rolling longer. That is not marketing. That is physics.
You Want Max Cushion Without Feeling Slow
Most cushioned shoes make you feel like you are running through sand. The Cloudmonster 1 does not. The Speedboard and CloudTec locking mechanism give you a snappy toe-off that max-cushion shoes almost never deliver. You can actually push the pace in these.
You Tried Other On Shoes and Found Them Too Firm
The old On lineup was notoriously stiff. The Cloudmonster 1 changed that completely. This is the softest, most cushioned On shoe of its era and if firm On shoes turned you off before, this is the one that changes your mind.
You Need One Shoe That Does Everything
Easy runs, long runs, moderate tempo efforts, recovery days, even casual all day wear. The Cloudmonster 1 handles all of it without asking you to swap shoes. One pair. All the bases covered.
Compare Models
Cloudmonster 1 vs the Rest of the Family
Not sure which Cloudmonster to buy? Here is a straight answer.
You Are Here
Cloudmonster 1
Ride: Snappy and responsive with great forward roll
Best for: Daily training and long runs with real bounce
From $119 after discount
Also Available
Cloudmonster 2
Ride: Plusher and softer overall landing
Best for: Runners who want a softer feel above everything else
From $126 after discount
Also Available
Cloudmonster Hyper
Ride: Fast and explosive, built for pacy training days
Best for: Runners pushing marathon-level training intensity
From $154 after discount
Also Available
Cloudmonster 3
Ride: The best of the 1 and 2 combined with triple layer cushioning
Best for: Runners who want the latest and greatest generation
Newest drop, full price
Why Buy Here
Buy With Total Confidence at www.oncloudmonster.com
We know you have options. You can buy On shoes from a dozen different retailers. Here is why thousands of US runners shop here instead. This site exists for one reason only: the Cloudmonster. That means deeper inventory, faster restocks, better colorway selection, and a team that actually knows this shoe inside and out. Every pair is authenticated before it ships. You get your order in 10 to 14 working days. If something is off, returns are free for 30 days with no questions asked. And right now with up to 30% off select Cloudmonster 1 pairs you are getting the best price available anywhere in the US for a shoe this good. That is the deal. Take it.
100% authentic On product, every time
Up to 30% off, no code needed
Free shipping when you spend over $90
Arrives in 10 to 14 working days anywhere in the US
Free returns within 30 days, hassle free
US-based customer support that actually responds
FAQ
Questions People Ask Before They Buy
Everything you need to know about the Cloudmonster 1 — sizing, shipping, returns, authenticity, and more.
Deep Dive
On Cloudmonster 1 in the USA: Everything You Need to Know Before You Buy
The Shoe That Rewired On Running's Reputation in America
When the Cloudmonster 1 dropped in 2022 it was not just a new shoe from On. It was a turning point. For years American runners who tried On shoes came away impressed by the looks but underwhelmed by the ride. Firm, stiff, and lacking in real cushioning, the early On lineup was popular as a lifestyle shoe but never taken seriously in the training world. The Cloudmonster 1 changed that almost overnight. With double the Helion superfoam of any previous On model and the largest CloudTec pods ever built, it delivered something the US running market had not seen from On before: a max-cushion shoe that was also genuinely fun to run in.
Why US Runners Keep Coming Back to It
Running culture in the United States is wide and varied. Americans train across wildly different climates, from humid Florida summers to frigid Minnesota winters, from sea-level road races in Los Angeles to high-altitude runs in Colorado. The Cloudmonster 1 handles all of it. The mesh upper breathes in heat and does not weigh you down in the rain. The rocker geometry keeps your stride efficient mile after mile. And the Monster CloudTec cushioning protects your joints on the hard pavement of New York City sidewalks and the concrete paths that line practically every suburban neighborhood in the country. It is a shoe built for American running life.
The Best Price for the Cloudmonster 1 in the US
At www.oncloudmonster.com we take the pricing seriously. The Cloudmonster 1 retailed at $170 when it launched. With up to 30% off on select colorways right now you can bring that down to around $119. Add free shipping on orders over $90 and free 30-day returns and you are looking at a completely risk-free purchase at the lowest legitimate price in the US market. We are not discounting fakes. We are not running a bait and switch. These are authentic On Cloudmonster 1 shoes at the best price available anywhere in the country.
How to Pick the Right Colorway
The Cloudmonster 1 came in a solid range of colorways across its run, from the clean All Black that works with everything to the bold Pearl / Thorn / Volt that turns heads on every run. Women's colorways leaned into earthy tones like Ivory / Grenadine and Tan / Pink alongside sharp pops like Frost / Cobalt. If performance is all you care about, any colorway gives you the same exact ride. If you want a shoe that looks just as good off the run as it does on it, the lighter undyed and white colorways are consistently the top sellers on this site.
www.oncloudmonster.com is your dedicated US store for the On Cloudmonster 1. Shop men and women colorways with up to 30% off, free shipping on orders over $90, free 30-day returns, and guaranteed delivery in 10 to 14 working days across all 50 states. Every pair is authentic Swiss-engineered On product. The Cloudmonster 1 features Monster CloudTec cushioning, Helion superfoam, a Speedboard propulsion plate, and a rocker geometry built for daily training and long runs on American roads.