Final price reduction UNUSED socks, sold as a set. *We do not plan to sell them individually. Size: Free size Color: GRAY, BLACK Retail price: ¥3,520 each There is no material listed, but based on the feel, I believe it's a blend of cotton and acrylic (with a nep-like appearance). The fabric is a bit thick. You could pair them with sandals like Birkenstocks (with socks) during this time of year. Since they are UNUSED, I believe they are made with carefully selected materials. Although they are new and unused, they have been stored at home. Please refrain from purchasing if you are sensitive to this.