This is the On Cloudmonster 2. The color is black/white, and the size is 26.5cm. I am selling these because I bought another pair of running shoes and no longer need them. They are new and were purchased from a retailer, and I have used them once (less than 10km of running). The insoles are unused. There is no cushioning degradation, and the outsole is still in good condition. I cleaned them before listing them. Thank you. The Cloudmonster features On's patented CloudTec® sole, which uses the largest Cloud elements in On history. This is the most cushioned shoe in the collection. The midsole material uses On's unique Helion® super foam, which is lightweight, durable, and heat-resistant, creating a higher level of cushioning. The Cloudmonster delivers a playful ride feel for those serious about performance. It's perfect for daily light runs and makes long Sunday runs enjoyable. It's also ideal for recovery runs or when you just want to enjoy going out for a walk. In addition, we are working on product development to reduce environmental impact, using recycled materials for 80% of the polyester in the upper and 35% of the entire shoe. For those who want to know what it feels like to run on clouds, you'll understand everything after just a few steps.