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

The On LightSpray Cloudboom Strike 2 is tested 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, lightweight Helion™ HF hyper foam, carbon Speedboard®, and robot-woven LightSpray™ upper. Includes the Elite Run Sock High Hyper for unmatched synergy with the LightSpray™ construction.

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.

Updated LightSpray™ Second-Skin Upper

In just three minutes, a robot weaves a seamless upper from a single 1.5km yarn, reducing waste whilst delivering a second-skin fit. This lightweight, seamless LightSpray™ upper eliminates distraction during racing, sitting against the foot as if it isn't there. The included Elite Run Sock High Hyper works in complete synergy with the LightSpray™ upper as a complete system rather than separate components.

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 outer delivers confident traction during marathon racing across varied road surfaces. Co-created with athletes across marathon and half-marathon testing.

Key Features:

- CloudTec Sphere™ cushioning system

- Thin forefoot and midfoot gaps for multi-directional flex

- Lighter resilient Helion™ HF hyper foam

- Lightweight seamless LightSpray™ upper

- Robot-woven from single 1.5km yarn

- Second-skin fit with reduced waste

- Carbon Speedboard® for propulsion

- High-grip rubber outsole

- Elite Run Sock High Hyper included

- 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 LightSpray Cloudboom Strike 2 Right for You?

The CloudTec Sphere™ system is what distinguishes this from the original Cloudboom Strike. Thin gaps between forefoot and midfoot allow the foam to flex and adapt in multiple directions rather than compressing in a single plane. The result is a more responsive, adaptable platform during race pace efforts where foot position and ground contact vary with fatigue and terrain. LightSpray™ upper technology delivers a seamless, second-skin fit that genuinely removes upper distraction during racing. Helion™ HF hyper foam maintains energy return throughout marathon distances without the dead feeling some foams exhibit late in a race. The included Elite Run Sock High Hyper works as part of the system rather than an afterthought. Co-created and athlete-tested across marathon distances, this is built for runners targeting meaningful race results rather than training use.