Summary

The On Running Cloudboom Max is a high-performance running shoe designed to provide maximum comfort and energy return for marathon runners targeting finish times of four hours or more. It features a dual-layer Helion™ HF foam midsole and a glass fiber-infused Speedboard® to enhance propulsion and efficiency. The breathable mesh upper ensures a secure, race-ready fit, while the aggressive rocker geometry promotes smooth transitions. Weighing approximately 10.4 ounces (296 grams) for a men's US size 8.5, the Cloudboom Max offers a balance between cushioning and responsiveness. Within On Running's lineup, the Cloudboom Max is positioned as a race-day shoe for the 'everyday marathoner,' offering cutting-edge technology in a more forgiving and supportive package compared to models like the Cloudboom Strike, which is tailored for elite runners aiming for personal bests. In comparison to other On Running models, the Cloudboom Max provides a unique combination of comfort and performance, making it suitable for runners seeking a reliable shoe for long-distance races without compromising on speed or support.