These are "Mochihada" extra-thick socks made by Washio Co., Ltd. They have excellent heat retention, making them perfect for outdoor work or activities in the winter, and I personally love them. I bought a lot of them, expecting to throw them away when they got holes, but they're extra thick and durable, so they don't wear out easily and last a long time. They're a bit expensive for socks, but they last, and they're ideal for anyone looking for warmth! Please try them once. (This is just my personal opinion, so please take it as one data point.) A set of two pairs of socks: green and white marble pattern, and dark red, extra thick and with excellent heat retention. Thank you for looking. Someone informed me that my photos were being used on a suspicious website, so I've changed the photos. Thank you.