Black socks that provide warmth. These socks are like a kotatsu! Instant purchase OK - Product Name: Warm Socks - Color: Black - Size: 23-25cm - Description: Socks that provide warmth - Usage: Cold protection - Set Contents: 1 pair Precautions for use: When washing, use a laundry net and wash with a neutral detergent. Also, the material has excellent heat retention, but pilling may occur due to friction during wear and washing. Although it is a new, unused product, there may be some loose threads due to being a foreign product. To reduce shipping costs, the socks will be taken out of their packaging and shipped in a waterproofed envelope via Yu-Packet Post Mini. Autumn/Winter, Ladies, Cold Protection Black, Black, Gray, Pink Kotatsu-style, like Kotatsu socks