by ON
Type: Lightweight Training Shoe
Color -
Estimated Delivery In:

3-5 Days

The On Cloudmonster 3 is a high-stack road trainer built for runners who want protection without losing rhythm. It combines a large-volume midsole with a fast rocker geometry, creating a ride that feels energetic but controlled. For long miles, steady efforts, and moderate workouts, it delivers comfort that does not feel dull.

While not a dedicated super shoe, the Cloudmonster 3 has enough snap to handle uptempo days or even race efforts for runners who prefer a more stable, durable platform. It is a versatile performance trainer with real-world durability.

Specs & Shoe Notes

Technical Specs

Cushion Level
High Cushion
Surface
Road
Drop
6mm
Weight
9.7 oz men’s / 8.1 oz women’s

Foam Technology

  • Helion™ superfoam - TPE-based compound: Helion is On’s primary performance midsole foam. In the brand’s hierarchy, it sits below their Pebax-based racing foams but above entry-level EVA blends. It is designed to balance durability, rebound, and temperature resistance. Underfoot, it feels firm-to-responsive rather than marshmallow-soft. It prioritizes long-run comfort, consistent energy return, and platform stability over ultra-soft sink-in cushioning.
  • CloudTec® pods + Speedboard® (nylon blend): The large CloudTec cavities compress and rebound to create a rolling sensation through toe-off. The embedded nylon Speedboard is not carbon, but it adds structure and forefoot snap. It improves efficiency without creating the aggressive stiffness of a plated race shoe.

Comfort & Fit Notes

<ul> <li><strong>Fit:</strong> True-to-size length with a secure midfoot and moderately roomy forefoot.</li> <li><strong>Upper:</strong> Engineered mesh with structured overlays - breathable but not overly minimal.</li> <li><strong>Step-in feel:</strong> High-stack cushioning with a slightly firmer, energetic rebound rather than a soft sink.</li> <li><strong>Stability feel:</strong> Neutral platform with inherent guidance from the wide base and rocker geometry - no traditional stability posting.</li> </ul>

This Shoe Is Perfect For

High-cushion road training, long runs, and structured workouts - with enough pop for occasional racing.

How This Shoe Compares

Compared to Nike Zoom Fly 6

The Zoom Fly 6 is more aggressive and race-oriented, typically firmer and more propulsive through its plate-driven ride. The Cloudmonster 3 feels more forgiving and stable underfoot, especially for longer steady runs. If you want something closer to race-day stiffness, go Zoom Fly. If you want versatile training comfort with pop, the Cloudmonster 3 is more balanced.

Compared to ASICS Sonicblast

The Sonicblast leans lighter and slightly firmer, with a more traditional trainer feel. The Cloudmonster 3 offers a higher stack and more pronounced rocker sensation. For runners wanting maximum cushioning and smooth turnover, the On feels more modern. The ASICS may feel more grounded and conventional.

Local Benefits

Enjoy expert fitting with every purchase. Visit any Athletic Annex location for a free gait analysis, 3D foot scan, personalized shoe recommendations, and hands-on support to dial in your perfect fit. Prefer to shop online? Enjoy free shipping and free 30-day returns, so you can run, walk, or move in your shoes with total confidence.

Frequently Asked Questions