These are heat-generating socks. I bought a lot, so I'm sharing some. The regular price seems to be 2980 yen. They're packaged so you can see the pattern, but you actually wear them inside out. How about them for the coming cold season? The opening isn't tight, even for my thick ankles. If you buy up to 4 pairs, I'll include them with a 150 yen discount per pair. You can also choose from 3 colors. There's a limited quantity, so please let me know your preferred color as soon as possible.