The Updated ON Cloudboom Strike 2: Maximum Speed for Marathons and Race Days

The ON Cloudboom Strike 2 is the fastest marathon and racing shoe ON has ever developed. Specially designed for runners who want to get the most out of their performance, this second-generation model combines a completely redesigned carbon construction with a lighter midsole and the revolutionary CloudTec Sphere™ cushioning system. The result is an explosive racing shoe that is lighter, more comfortable, and more efficient than its predecessor.

Whether you're aiming for a personal best in the 10K, half marathon, or full marathon, the Cloudboom Strike 2 is built to help you maintain maximum speed for as long as possible.

Next-Generation Carbon Technology

The Cloudboom Strike 2 is designed to convert every step into maximum forward speed.

• Full Carbon Speedboard® – A redesigned, stiffer, and lighter carbon plate instantly converts every landing into powerful propulsion.
• Curved Speedboard® construction – Supports fast and efficient roll-out, making it easier to maintain high speeds.
• Designed for race pace – Ideal for fast 10-kilometer runs through full marathons.

CloudTec Sphere™ for Softer Landings

New to this generation is the completely redesigned CloudTec Sphere™ cushioning system.

• CloudTec Sphere™ – Specially designed hollow structures absorb impact more effectively and return more energy with every step.
• More comfort on long trips – Keeps your legs feeling fresh longer when the miles start to add up.
• Smooth transition – Softer landings without losing speed or efficiency.

Helion™ HF Superfoam for Maximum Energy Return

Underfoot, two layers of the latest Helion™ HF foam provide an exceptionally energetic running experience.

• Dual-layer Helion™ HF – Lightweight superfoam with maximum responsiveness.
• 15% lighter than the previous generation – Less weight, more speed.
• More energy return – Helps you run more efficiently at high race paces.

The result is a racing shoe that feels both explosive and surprisingly comfortable during long races.

Lightweight Upper for a Perfect Race Fit

The redesigned upper is designed entirely with speed in mind.

• Open Leno Weave mesh – Extremely lightweight and highly breathable, allowing heat and moisture to be quickly wicked away.
• Adjustable lacing system – Allows you to customize the fit to perfectly suit your foot.
• Improved heel construction – Provides greater comfort and stability during long matches.

Grip for High Speeds

The outsole has also been completely redesigned.

• Nanotube rubber outsole – Provides excellent traction on asphalt without adding unnecessary weight.
• Optimized contact surface – Greater control during fast turns and efficient push-off with every step.

Designed for Game Days

The ON Cloudboom Strike 2 is ideal for:

• 10-kilometer races
• Half Marathons
• Marathons
• Speed Training Sessions
• Runners who combine maximum speed with comfort over long distances

Weighing just 191 grams, the Cloudboom Strike 2 is one of the lightest carbon racing shoes in its class.

Why choose the ON Cloudboom Strike 2?

The Cloudboom Strike 2 is the most advanced racing shoe ON has ever developed. Thanks to the combination of the new CloudTec Sphere™, the lighter Helion™ HF midsole, and the redesigned carbon Speedboard®, this shoe delivers maximum speed without compromising comfort during longer races.

• Revolutionary CloudTec Sphere™ cushioning system
• Full Carbon Speedboard® for maximum propulsion
• New Helion™ HF Superfoam with Extra Energy Return
• 15% lighter than the previous generation
• Only 191 grams
• Open Leno Weave upper for maximum ventilation
• Nanotube rubber outsole with excellent traction
• Ideal for races ranging from 10 km to a marathon

With the ON Cloudboom Strike 2, you'll experience ON's latest generation of racing technology: lighter, faster, and more efficient than ever, built to help you achieve your fastest times.