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On Cloudmonster 1 - Cerulean | Ice 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 1 - Cerulean | Ice CloudTec® All-Day Cushioning

CloudTec® All-Day Cushioning

Independent hollow cushioning pods compress on impact and rebound with each stride, delivering the springy comfort of a performance trainer across an entire day of wear.

On Cloudmonster 1 - Cerulean | Ice Speedboard® Propulsion Built In

Speedboard® Propulsion Built In

The integrated Speedboard® plate works with Helion superfoam to convert impact energy into forward momentum, keeping your gait smooth and efficient mile after mile.

On Cloudmonster 1 - Cerulean | Ice Clean Silhouette, Durable Grip

Clean Silhouette, Durable Grip

Hidden eyelets preserve the shoe's refined look while a rubber outsole delivers reliable traction on both wet and dry road surfaces.

Product story

Built to Move, Styled to Stay

The Cloudmonster 1 in Cerulean | Ice is hard to miss on a morning run. That clear, saturated cerulean upper paired with an ice-white outsole reads like a cloudless sky reflected on fresh snow. It is a deliberate colorway for women who treat their gear as an extension of their aesthetic, not an afterthought.

Under that striking exterior sits a full CloudTec® cushioning system, the hollow pods that define the Cloudmonster line. Each pod compresses independently on landing, absorbing the shock of the road, then rebounds to return energy with every step. The Speedboard® propulsion plate works alongside Helion superfoam to keep the ride feeling lively from the first mile to the last.

The Cloudmonster 1 fits naturally into a wide range of daily routines. It handles a steady four-mile loop before work just as capably as a long weekend walk through the city. Hidden eyelets keep the silhouette clean, so the shoe transitions from a post-run coffee stop to a full day on your feet without looking like you just came off the track.

This shoe suits the woman who logs consistent weekly mileage and wants cushioning that genuinely supports all-day wear, not just the run itself. Whether you are returning to a regular training schedule, building up your base, or simply done settling for shoes that choose between comfort and good looks, the Cloudmonster 1 in Cerulean | Ice was made with you in mind.

Series

Cloudmonster 1

Fit note

True to size

Product FAQ

Details before you decide.

Here are answers to the questions we hear most often about the Cloudmonster 1 in Cerulean | Ice.

Runner notes

Why this pair keeps getting picked.

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

The cushioning is unlike anything I have run in before

I picked up the Cloudmonster 1 in Cerulean | Ice after my physical therapist suggested a more cushioned shoe for my recovery runs. The CloudTec pods feel genuinely springy in a way that foam-only shoes just do not. Six weeks in and my knees are thanking me. The color is also stunning in person, much richer than it looks on screen.

Tamara Weston

Daily runner, Portland, OR

My go-to shoe for easy days and long walks

I use these on my recovery days between harder track sessions and they are perfect for that role. The rebound keeps me from feeling sluggish, but the cushioning absorbs enough impact that my legs feel fresher the next morning. I have also worn them all day at a conference and had zero complaints from my feet.

Priya Nambiar

Half-marathon trainer, Atlanta, GA

Finally a shoe that handles 12-hour shifts

I spend most of my shift on a hospital floor and finding a shoe that can survive that without destroying my feet has been a project. The Cloudmonster 1 is the first running shoe I have worn to work that I would actually recommend. The cushioning holds up through a full shift and the Cerulean color makes me easy to spot in a busy ward, which my colleagues find funny.

Jessica Calloway

Registered nurse, Nashville, TN

Beautiful shoe, slight break-in period

The color on these is exactly what I wanted, a true sky blue with a really clean white sole that photographs beautifully. There was a small break-in period before the pods felt fully broken in, maybe three or four runs, but after that they have been consistently comfortable. I would size up half a size if you have a slightly wider foot like I do.

Monica Eberhart

Recreational runner, Minneapolis, MN

Gave me the confidence to get back out there

After a stress fracture I was nervous about impact, and my sports medicine doctor pointed me toward maximum-cushion options. The Cloudmonster 1 felt protective from the very first run without feeling heavy or sluggish. I am now back to running five days a week and these are on my feet for almost every one of them.

Dana Ruiz

New runner returning from injury, Austin, TX

Commutes, gym days, and everything in between

I wear these on my commute, which involves a lot of walking up and down hills, and then straight to the gym for a light run on the treadmill. They handle both without complaint and look good enough that I have been stopped in a coffee shop twice and asked about them. The hidden eyelets give the silhouette a really polished, minimal look that I appreciate.

Stephanie Huang

Gym and commute runner, San Francisco, CA

Best easy-day shoe I have owned

I run about 50 miles a week and the Cloudmonster 1 has become my dedicated easy-day shoe. The Speedboard plate gives it more propulsion than I expected from a cushioned daily trainer, so I never feel like I am running in slippers. At the same time the impact absorption keeps the cumulative fatigue down, which matters when you are stacking training blocks.

Rachel Thornton

Marathon runner, Denver, CO

Finally a cushioned shoe that does not bottom out

I have struggled with cushioned shoes compressing out too quickly under my weight, but the Cloudmonster 1 has held up really well across a couple hundred miles. The CloudTec pods still feel responsive and the Helion foam has not flattened noticeably. The Cerulean colorway is bright and fun and I get compliments on it regularly at the park.

Lorraine Dubois

Heavier runner, Charlotte, NC