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On Cloudmonster 2 - Nimbus | Arctic primary angle

On | Standards

Every Cloudmonster is engineered to On's highest standards - tested by athletes, certified for performance, and built to exceed your training goals.

Product details and quick facts

Cushioning

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Mid

Road running

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Responsive

Lacing

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Standard

Heel to toe drop

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6mm

Key features

On Cloudmonster 2 - Nimbus | Arctic Biggest-Ever CloudTec Cushioning

Biggest-Ever CloudTec Cushioning

Enlarged hollow CloudTec pods compress on every landing and rebound with each toe-off, giving you a noticeably softer and more responsive feel than previous Cloudmonster generations.

On Cloudmonster 2 - Nimbus | Arctic Dual-Density Helion Superfoam

Dual-Density Helion Superfoam

The reworked Helion midsole uses two foam densities to balance plush cushioning with the spring-loaded bounce that keeps your legs feeling fresher late in a run.

On Cloudmonster 2 - Nimbus | Arctic Nylon-Blend Speedboard Propulsion

Nylon-Blend Speedboard Propulsion

The nylon-blend Speedboard is shaped specifically for forward propulsion, channeling the energy from each landing into a powerful, efficient take-off.

Product story

Built for More. Every Step of It.

The Cloudmonster 2 in Nimbus | Arctic earns its name. The cool, misted palette sits somewhere between a clear winter sky and the fog that settles on a lake at dawn, and it translates that same unhurried clarity into how the shoe actually feels underfoot. It is a road runner that invites you to go longer, and then backs that invitation up with real cushioning depth.

At the core of the Cloudmonster 2 is the biggest-ever CloudTec sole, engineered so that each hollow cushioning pod compresses cleanly on landing and rebounds with purpose. Underneath it all, reworked dual-density Helion superfoam adds a layer of bounce that earlier versions of the Cloudmonster could not match. A foam insert in the forefoot absorbs the sharper shock of toe-off, smoothing the transition from landing to lift.

The nylon-blend Speedboard runs the length of the shoe and does two things at once: it stiffens the platform just enough to give you a stable foundation, and it curves at the toe to redirect your energy forward into the next stride. That rocker geometry means the shoe is always working with you, converting cushioning into propulsion rather than letting it sit inert.

The Cloudmonster 2 suits women who want one shoe that handles daily training runs and long-effort days without compromise. If you are returning from an overuse injury and need a forgiving landing, coming back to road running after time off, or simply someone who has decided that high-mileage weeks should not leave your legs demolished, the Nimbus | Arctic colorway is a calm, confident choice that wears as well as it performs.

Series

Cloudmonster 2

Fit note

True to size

Product FAQ

Details before you decide.

Here are answers to the questions women ask most before buying the Cloudmonster 2 in Nimbus | Arctic.

Runner notes

Why this pair keeps getting picked.

Natural feedback shaped around the fit, colorway, and ride profile of this exact product.

Finally a max-cushion shoe that does not feel dead

I have tried most of the major max-cushion options and the Cloudmonster 2 is the first one that gives me plush landing without losing propulsion on the push-off. Training for my third marathon and these have become my go-to for anything over ten miles. The Nimbus colorway is understated and pairs with everything I own.

Danielle Okafor

Marathon trainer, Portland, OR

Twelve-hour shifts and my feet still feel human

I bought these after a colleague recommended them for long shifts on hospital floors. The cushioning is genuinely unlike anything else I have worn for standing and walking. By hour ten my legs are tired but the sharp foot pain I used to get by mid-shift is gone. I am on my second pair.

Rachel Simmons

ER nurse, Dallas, TX

The shoe that got me back to running

After a metatarsal stress fracture I needed something forgiving enough to rebuild mileage without aggravating the injury site. The Cloudmonster 2 gave me that. The forefoot foam insert absorbs impact in exactly the area I needed it most. Eight months later I am back to 35 miles a week and these are still in the rotation.

Priya Nambiar

Returning from stress fracture, Boston, MA

Great cushioning, takes a few miles to warm up

The first two runs felt a little stiff, but by the third outing the Helion foam had loosened up and the bounce was noticeable. Now they are my favorite shoe for easy morning miles. I went true to size and the fit is perfect. The Arctic tone is exactly as cool and clean as it looks in photos.

Tanya Brewster

Casual daily runner, Minneapolis, MN

Supportive without making me feel like I need support

At 185 pounds I have always struggled with shoes that bottom out too quickly or feel too corrective. The Cloudmonster 2 just cushions, without steering my gait or making assumptions. The dual-density foam holds up under my stride and after two months I am not seeing the midsole compression I usually get this early. Genuinely impressed.

Keisha Wentworth

Heavier runner rebuilding fitness, Atlanta, GA

The Speedboard is the real story here

I bought these expecting the cushioning to be the headline and it is excellent, but what surprised me was how propulsive the toe-off feels. The Speedboard genuinely redirects energy forward in a way I could feel from the first run. My half-marathon pace runs in these felt noticeably easier on the legs than in my previous shoes.

Sofia Marchetti

Half-marathon runner, Chicago, IL

From treadmill to sidewalk without skipping a beat

I split my runs between a treadmill at the gym and outdoor sidewalk miles and the Cloudmonster 2 handles both without compromise. The rocker geometry feels especially natural on the treadmill belt. The Nimbus colorway is subtle enough that I wore them into a cafe after a run without drawing attention, which matters to me.

Linda Ferris

Gym and commute runner, Seattle, WA

More road shoe than I expected, in the best way

I have a trail running background and was skeptical of a plush road shoe, but the Cloudmonster 2 converted me. The energy return is real and the ride does not feel as disconnected from the ground as I feared. I would not take these off-road, but for long pavement runs they have changed how I think about cushioning. The Arctic colorway is a clean, confident look.

Autumn Calloway

Trail-to-road convert, Denver, CO