I myself came to Hokkaido with my Line Booties. Comfortable and warm, but simply not high enough for the Japanese snowfall at night. So a new solution had to be found quickly. I was inspired by the Japanese people.
Almost EVERYONE walks around with rubber boots in everyday life here. Whether in the supermarket, in the sushi shop around the corner, at the office or in the workshop. The wellies are always there. And not without reason. They keep you warm and, unlike most shoes, are non-slip and, of course, waterproof.
The DIY stores in Japan sell them in all variations, colours, sizes and different features. What is definitely recommended are rubber boots with an insulating liner, which keep your feet a little warmer in the cold temperatures on Hokkaido. The liner is replaceable and can be bought separately if necessary. In summer, the liner can of course also be left out. The model I opted for also has an upper cuff that can be tightened to prevent snow from falling into the shaft. A gadget that has proved its worth several times. Another accesory, which was not necessary for me, are attachments for the wellies, which provide more grip.