Gray socks that provide warmth. Socks like a kotatsu (heated table). Instant purchase OK - Product Name: Warm Socks - Color: Gray - Size: 23-25cm - Description: Socks that provide warmth - Usage: Measures against cold - Set Contents: 1 pair Usage Instructions When washing, use a laundry net and wash with a neutral detergent. Also, the material has excellent heat retention, but pilling is likely to occur due to friction during wear and washing. Although new and unused, there may be some loose threads as this is an overseas product. To reduce shipping costs, the socks will be taken out of their packaging and sent in a waterproofed envelope via Yu Packet Post Mini. Autumn/Winter, Ladies, Measures against cold Black, Gray, Pink Kotatsu-style, like Kotatsu socks