Thank you for viewing. This is the ON Cloudmonster 2. The size is 27.5cm. The running distance is about 10km. *There were reviews that it runs a bit large, so I usually buy 28cm, but I purchased this one a size smaller. The following is a product description generated by AI. On Cloudmonster 2 Unleash the monster. The next-generation monster-class cushioned running shoes. The ultimate cushioning experience The Cloudmonster 2 is equipped with On's largest CloudTec® cushioning ever. The Helion™ super foam, with a maximum thickness of 42mm, absorbs impact upon landing to the extreme and generates explosive propulsion. "It's like running on clouds" - With monster-class softness and responsiveness that surpasses the previous model, your feet won't tire even on long runs. Evolved Speedboard® The newly designed nylon Speedboard® achieves smoother rolling and powerful kicking. The Monster 2 isn't just thick cushioning. It's a monster of propulsion. Lightweight x Breathability Weight: Men's approx. 295g (27cm) / Women's approx. 235g (24cm) Engineered mesh upper provides 40% more breathability (compared to the previous model). Even on long runs in the hot summer, your feet will always be dry and comfortable. Evolution of grip The Missiongrip™ rubber outsole provides excellent traction even on wet surfaces. The monster doesn't stop running, even on rainy days. Type: Running shoes