These are double leather boots for winter mountaineering made by GORO in Sugamo, Tokyo. They are completely waterproof with a boat-shaped FRP (fiber-reinforced plastic) sandwiching the inside. The size is 24.5cm, the soles are Vibram, and the inner boots are felt. I used them twice in the mountains of Hokkaido. There is almost no wear and tear. Please judge from the images.