Built for runners chasing their fastest finish yet, the On Cloudboom Strike 2 combines lightweight construction with race-ready responsiveness to help you push the pace with confidence. Advanced Helion™ HF foam and a carbon Speedboard® work together to deliver explosive energy return and a smooth, propulsive ride from start to finish. Whether you're lining up for a 5K or a marathon, this high-performance racing shoe is engineered to help you run stronger, faster, and farther on race day.

Design:

• Engineered with CloudTec Sphere™ geometry featuring precisely designed cushioning channels to help maximize impact absorption and rebound
• Curved carbon Speedboard® is lighter and stiffer than previous versions to promote forward momentum with every stride
• Dual-density Helion™ HF foam construction balances responsiveness and stability for race-day performance

In-Shoe Comfort:

• CloudTec Sphere™ cushioning system is designed to enhance comfort and support efficient running mechanics over long distances
• Helion™ HF super foam is 15% lighter than the previous generation to deliver a softer, more energetic ride
• Engineered cushioning channels help create a smooth, responsive underfoot feel as the miles add up

Durability & Traction:

• High-grip rubber outsole helps provide confident traction during fast road-racing efforts
• Carbon Speedboard® works with the midsole platform to maintain efficient energy transfer throughout your run

Additional Details:

• Built for race-day speed from short road races to marathon distances
• Lightweight racing design weighs approximately 191 g
• 5 mm heel-to-toe drop
• Co-created with elite athletes for high-performance competition