On Cloudmonster 3 3MG10055256 Brook Flurry Light Green Men's Road Running Shoes – CloudTec Helion Speedboard

• Cloudmonster 3 Generation: The third-generation Cloudmonster develops On's oversized cushioning concept with updated responsiveness, impact absorption and forward-rolling geometry.
• Brook / Flurry Colorway: The official Brook / Flurry palette combines cool grey, pale mint and light green tones for a distinctive yet wearable look.
• Triple-Layer CloudTec®: Multi-layer structural cushioning creates the signature Cloudmonster ride and oversized hollow-sole appearance.
• Helion™ Foam: On's performance cushioning foam supports comfort and energy return through repeated running strides.
• Speedboard® Propulsion: An integrated propulsion platform works through the forefoot to support smooth, energetic transitions.
• Enhanced Rocker: Curved sole geometry helps encourage the characteristic forward-rolling Cloudmonster sensation.
• Engineered Knit Upper: Targeted knit zones balance breathability with support around key areas of the foot.
• Daily Trainer Versatility: Designed for regular mileage, everyday runs, recovery-oriented sessions and steady-state training.
• Performance Meets Streetwear: The sculpted CloudTec® sole and soft green palette make the shoe easy to style beyond its original running purpose.

Signature Cloudmonster Architecture

Oversized hollow Cloud structures remain the defining visual and functional characteristic of the Cloudmonster family. Cloudmonster 3 evolves this design with an updated triple-layer CloudTec® platform.

Responsive Compression

CloudTec® uses specialized foam geometries engineered to compress when loaded, helping manage impact as the foot contacts the ground.

Multi-Directional Support

Cloud structures respond to movement through horizontal and vertical compression, creating a dynamic cushioning experience rather than behaving like a completely solid foam block.

Forward-Rolling Ride

CloudTec® works with Helion™ foam, the Speedboard® and enhanced rocker geometry to create smooth forward progression through the stride.

Designed for Regular Mileage

The cushioning platform balances impact absorption with responsiveness, making it suitable for consistent everyday training.

Dynamic Cushioning

Helion™ foam forms an important part of the Cloudmonster 3 platform, helping deliver controlled cushioning through each stride.

Comfort & Energy Return

The foam is engineered to combine impact protection with responsiveness as the runner moves from landing toward push-off.

Versatile Performance

Helion™ is designed for versatility, supporting the changing demands of regular daily running rather than a single specialized pace.

Mile-After-Mile Support

Its combination of cushioning and stability helps maintain a controlled feel throughout repeated training sessions.

Propulsion-Focused Construction

The integrated Speedboard® is designed to enhance forward propulsion as the foot transitions through the forefoot.

Energy Storage & Release

The system flexes during loading and assists the transition toward push-off as the runner progresses through the stride.

Running Economy

Speedboard® technology is developed to support efficient forward motion across different running paces.

Integrated Performance System

The Speedboard® works together with CloudTec®, Helion™ foam and rocker geometry rather than functioning independently.

Smooth Forward Roll

Cloudmonster 3 uses an enhanced curved sole shape designed to guide the foot smoothly from landing into forward movement.

Energetic Push-Off

The elevated forefoot works with Speedboard® technology to encourage a more energetic transition toward toe-off.

Fluid Transitions

Rocker geometry reduces the amount of time the shoe remains completely flat as the stride progresses forward.

Signature Cloudmonster Sensation

The forward-rolling ride remains one of the major characteristics separating Cloudmonster from conventionally shaped daily trainers.

Targeted Breathability

The engineered knit incorporates breathable zones designed to increase airflow around the foot during running.

Secure Midfoot Hold

Structured areas around the lacing system help keep the foot centered over the oversized cushioning platform.

Enhanced Tongue Construction

The updated tongue is designed to improve step-in comfort and support secure lockdown through the midfoot.

Standard Lace-Up Fit

Traditional lacing allows tension across the upper to be adjusted according to foot shape and personal fit preference.

Lightweight Technical Appearance

The streamlined knit construction balances the exaggerated sole and maintains a modern performance-focused silhouette.

Official Brook / Flurry Reference

Style 3MG10055256 is officially identified as the men's Cloudmonster 3 in Brook / Flurry.

Mint Grey Upper

The engineered knit upper uses a soft blue-grey to pale mint tone, giving the shoe a clean, cool-toned appearance.

Green On Running Branding

Bright green side graphics introduce a clear accent against the quieter neutral upper and make the branding more visible.

Green Midfoot Accents

Additional green detailing around the lace structure adds depth while maintaining the Brook / Flurry palette.

Tonal CloudTec® Platform

The pale green-grey midsole keeps the oversized cushioning visually integrated with the upper instead of creating a heavy contrast.

Easy-to-Wear Technical Color

Brook / Flurry delivers more character than a basic grey shoe while remaining easy to coordinate with neutral and earth-tone outfits.

Daily Training

Cloudmonster 3 is designed as a daily trainer suitable for handling a large portion of regular weekly running mileage.

Everyday Runs

Balanced cushioning and durability make it suitable for the lower-intensity sessions that form the foundation of consistent training.

Recovery-Oriented Running

The substantial cushioning architecture provides impact absorption that can be useful during easier sessions between harder workouts.

Steady-State Mileage

Medium-high responsiveness helps the shoe remain energetic when moving into a more consistent daily-training pace.

Road Running

CloudTec® cushioning, rocker geometry and strategically positioned rubber are primarily designed around paved road-running environments.

Treadmill Running

On also lists treadmill running among the intended activities for the Cloudmonster 3.

Walking & Travel

Customers who value high-volume cushioning may also find the Cloudmonster 3 comfortable for commuting, travel and extended walking.

On's official product listing describes the men's Cloudmonster 3 as true to size.

Customers with normal-width feet can therefore generally begin with their usual On running-shoe size.

Foot width, instep height, preferred toe room and sock thickness can still affect the most comfortable size.

The photographed product box is marked US Men's 8.5 / EU 42 / UK 8 / JP 26.5. These measurements apply specifically to the photographed pair.

Grey & Silver Styling

Light grey, charcoal and silver clothing connects naturally with the cool-toned Brook upper.

White & Cream

White, off-white, cream and stone create a clean neutral base that allows the green accents to stand out.

Technical Streetwear

Lightweight cargos, utility trousers, technical jackets and functional accessories complement the engineered running silhouette.

Black Contrast

Black trousers or shorts create stronger contrast against the pale mint-grey upper and oversized CloudTec® platform.

Olive & Khaki

Olive green, muted khaki and earth-tone clothing work especially well with the light green detailing.

Pastel Green

Small mint, sage or pale-green accessories can connect directly with the Brook / Flurry palette without making the outfit too bright.

Athleisure

Running shorts, track pants, technical tees and lightweight performance jackets naturally match the shoe's original running purpose.

Remove Loose Dirt First

Use a clean soft brush to remove dry dust and loose debris before introducing water or cleaning solution.

Clean Knit Gently

Use a soft cloth or soft-bristle brush with a mild cleaning solution and avoid aggressive scrubbing of the engineered knit.

Work in Small Sections

Because Brook / Flurry is a light colorway, gradual cleaning of smaller areas can help maintain a more even appearance.

Clean CloudTec® Cavities Carefully

Dust and small debris can collect inside the hollow Cloud structures. Use a soft brush rather than sharp objects to clean these openings.

Avoid Harsh Chemicals

Do not use bleach, strong solvents or aggressive household cleaning chemicals on the knit, foam or rubber components.

Do Not Machine Wash

Machine washing can place unnecessary stress on the knit upper, bonding, cushioning platform and internal performance components.

Air Dry Naturally

Allow the shoes to dry naturally in a ventilated location away from direct heaters, hair dryers and prolonged strong sunlight.

What is the correct model?

This is the On Men's Cloudmonster 3.

What is the style code?

The Brook / Flurry men's version uses 3MG10055256.

What is the official colorway?

On identifies this style as Brook / Flurry.

Is Brook / Flurry light green?

Visually, this colorway combines pale mint, blue-grey and light green tones, with brighter green branding and lace-area accents.

Is Cloudmonster 3 a road-running shoe?

Yes. On lists the model for running, road running and treadmill use.

Is it a daily trainer?

Yes. Cloudmonster 3 is designed as a versatile daily trainer for regular mileage.

What cushioning does it use?

Cloudmonster 3 uses an updated triple-layer CloudTec® cushioning system.

Does it use Helion™ foam?

Yes. Helion™ foam supports comfort and energy return.

Does it have Speedboard® technology?

Yes. An integrated Speedboard® supports propulsion through the forefoot.

What is the heel-to-toe drop?

The men's Cloudmonster 3 has a 6mm heel-to-toe drop.

How much does Cloudmonster 3 weigh?

On lists the men's model at approximately 295g per shoe.

Is Cloudmonster 3 neutral?

Yes. On identifies the model as a neutral-support running shoe.

Does Cloudmonster 3 fit true to size?

Yes. On's official listing describes the model as true to size.

Can Cloudmonster 3 be worn casually?

Yes. Although engineered primarily for running, its sculpted CloudTec® sole and modern technical upper work naturally with contemporary casual, athleisure and streetwear outfits.

Available online through HYPEKIXK. Select your preferred size before checkout and review current availability directly on the product page.

Knit and synthetic materials may naturally show small differences in weave, surface texture and panel alignment between individual pairs or production batches.

Brook, Flurry, mint, grey and light-green tones may appear slightly warmer, cooler, lighter or darker depending on studio lighting, photography and individual display settings.

Product specifications on this page reference the original On Men's Cloudmonster 3 3MG10055256 Brook / Flurry design to help customers identify the correct model, official colorway and key technologies.

HYPEKIXK is an independent retailer and is not affiliated with, endorsed by or an authorized retailer of On.

This is a non-retail / non-authentic product referencing the original design. Please review the QC photographs supplied before shipment for the exact pair you will receive.