Socks Supplement: Cozy Room Socks, Just Like a Kotatsu Color: Gray Size: 23-25cm Material: Acrylic Thanks to a unique knitting method, it warms the San Yin Jiao point, an acupressure point on the ankle that protects against cold, and keeps your toes warm. * Will be shipped from the special bag via Yu-Packet Post Mini. * When washing, use a laundry net and wash with a neutral detergent. Although it is new and unused, it is a foreign product, so there may be some loose threads. Please purchase with your understanding. ★ Other colors are also on sale! Autumn/Winter, Women's, Cold Protection Black, Gray, Pink Kotatsu-style, Similar to Kotatsu Socks Warm Socks