The shoes are super great. Very comfortable and keep you warm. One has the feeling of running barefoot, but has a non-slip sole underneath. Design I think that's great. However, with the sizes is difficult because of the double sizes. I have normal 38 and had therefore ordered first 37/38. But they were too tight, have done so that after a while my toes hurt. The shoes in size. 39/40 is a tick too big but it works. Definitely pleasant than to close pair. I would buy the shoes anyway anytime. As I said, they are just super comfortable!