Featuring On's biggest CloudTec ever for massive cushioning and max energy. A monster of a ride on the road. A monster of a sensation meets big performance. Light, durable and temperature resistant. A bold rocker shape and easy step-in make running pretty much irresistible. The soft sockliner and upper turn recycled materials into next-gen comfort so you're ready to run wild. The Cloudmonster is different, that much is obvious. Designed to be the ultimate CloudTec experience, it propels you forward stride after stride. It's perfect for energizing any run from an easy 5K to a big-effort 20. It may be a playfully weird ride, but it's definitely serious about performance.