Product Overview

The On Men's Cloudmonster 1 is the shoe that changed everything — the bold original that put On on the map as a serious player in max-cushioned running, and now a cult icon that lives comfortably at the intersection of performance and lifestyle. Built on On's Helion™ superfoam and the brand's signature CloudTec® cushioning system, the Cloudmonster 1 delivers a responsive, forward-rolling ride that works just as well on your daily run as it does on your way to brunch. This is the shoe that started it all, and it's as relevant as ever.

Key Features:

• Helion™ Superfoam Midsole: On's proprietary foam fuses multiple foam types to deliver a uniquely responsive, energy-returning ride — firm enough to feel fast, cushioned enough to feel effortless.
• CloudTec® Cushioning System: Oversized, independent Cloud pods compress on impact to absorb shock and snap back to propel you forward — delivering the sensation On has always promised, finally delivered at scale.
• Speedboard® Technology: A flexible nylon blend plate sits between the midsole layers to store energy on landing and release it at toe-off, adding a snappy, propulsive feel to every stride.
• Dramatic Rocker Geometry: The curved sole shape encourages a smooth, efficient heel-to-toe transition and promotes a natural forward roll — making every pace feel more effortless.
• Recycled Polyester Upper: A lightweight, breathable mesh upper built from 100% recycled materials delivers a clean, premium look with a secure, irritation-free fit.
• Fully Gusseted Tongue: Attached on both sides to prevent shifting and eliminate the need to readjust mid-run — a small detail that makes a big difference over long miles.
• Bold, Iconic Silhouette: The Cloudmonster 1's distinctive profile and oversized midsole make it one of the most recognizable shoes on the road — equally at home on a run or a city street.

Benefits:

Responsive Cushioning That Doesn't Slow You Down
Unlike traditional max-cushioned shoes that can feel sluggish and energy-absorbing, the Cloudmonster 1 delivers impact protection with a firm, snappy return. The result is a shoe that cushions hard landings without sacrificing the responsive feel that keeps your stride efficient and your legs fresh.

Versatile Enough for the Run and Beyond
The Cloudmonster 1 earns its lifestyle status honestly — it's comfortable enough for all-day wear, stylish enough to turn heads off the road, and capable enough to handle everything from easy recovery runs to moderately uptempo efforts. One shoe that genuinely does it all.

A Proven, Durable Daily Trainer
Years of runner feedback have confirmed what On's data showed from the start — the Cloudmonster 1 holds up over high mileage, maintains its feel well into a shoe's life, and remains a trusted rotation staple for runners who need reliability above all else.

Technical Specifications:

• Support: Neutral
• Cushioning: Maximum — Helion™ superfoam with CloudTec® pods
• Midsole: Helion™ superfoam with Speedboard® and CloudTec® system
• Outsole: CloudTec® rubber pods — road optimised
• Drop: 6mm
• Use: Road running and lifestyle — daily trainer, long runs, casual wear

Why Choose This Shoe?

The On Men's Cloudmonster 1 is a rare thing — a performance running shoe that became a cultural icon without compromising on what made it great to begin with. Whether you're a runner looking for a dependable, responsive daily trainer or someone who wants a shoe that moves seamlessly between the road and everyday life, the Cloudmonster 1 delivers. The original. Still worth it.