On Cloudboom Strike 2 - CloudTec Sphere™ for Marathon Race Day Speed

The On Cloudboom Strike 2 is co-created with athletes for marathons and half-marathons, delivering race-day speed whilst keeping feet comfortable and supported from start to finish. Built with the new CloudTec Sphere™ cushioning system, lighter resilient Helion™ HF hyper foam, carbon Speedboard®, and adaptable open-weave upper. A removable top midsole provides a soft, responsive ride.

CloudTec Sphere™ Cushioning System

The new CloudTec Sphere™ cushioning system features thin gaps between the forefoot and midfoot, allowing foam to move more freely and adapt in multiple directions for a smoother, more responsive feel. Engineered for speed, this updated cushioning system enhances performance by providing a fast, responsive platform designed specifically for marathon and half-marathon race efforts. Lighter, resilient Helion™ HF hyper foam delivers energy return throughout. A removable top midsole provides additional soft, responsive cushioning and can be removed to customise the ride.

Carbon Speedboard® with High-Grip Rubber Outsole

A carbon Speedboard® provides propulsive energy transfer at toe-off, working with CloudTec Sphere™ foam to drive forward momentum during race pace efforts. High-grip rubber outsole delivers confident traction during marathon racing across varied road surfaces. Co-created with athletes across marathon and half-marathon testing.

Adaptable Open-Weave Upper

The open-weave upper provides lightweight support and breathability, keeping feet comfortable mile after mile. The adaptable construction moves with the foot during race pace efforts whilst maintaining secure fit throughout.

Key Features:

- CloudTec Sphere™ cushioning system

- Thin forefoot and midfoot gaps for multi-directional flex

- Lighter resilient Helion™ HF hyper foam

- Removable top midsole for customisable ride

- Carbon Speedboard® for propulsion

- Adaptable breathable open-weave upper

- High-grip rubber outsole

- Co-created with athletes

- Tested for marathons and half-marathons

- Neutral support

Best For:

- Marathon racing

- Half-marathon racing

- Personal best attempts

- Competitive road racing

- Elite and sub-elite performance

- Race day execution

Is the Cloudboom Strike 2 Right for You?

The CloudTec Sphere™ system distinguishes this from previous Cloudboom versions. Thin gaps between forefoot and midfoot allow the foam to flex and adapt in multiple directions rather than compressing in a single plane, creating a more responsive, adaptable platform during race pace efforts. The removable top midsole lets you customise the ride to personal preference. Helion™ HF hyper foam maintains energy return throughout marathon distances without the dead feeling some foams exhibit late in a race. The open-weave upper keeps feet breathable and comfortable across extended race efforts. Carbon Speedboard® drives forward momentum at toe-off. Co-created and athlete-tested across marathon distances, this is built for runners targeting meaningful race results from the gun to the finish line.