Okamoto Socks Supplement Like a Kotatsu Sleep Switch Set of 2 Size: 22-25cm Colors: Pink, Gray Materials: Acrylic, Wool, Others Purchased early November 2025 New and Unopened Warms the entire foot by covering the soles of the feet where blood vessels are concentrated, and the open-toe design releases excess heat. Furthermore, it provides thermal stimulation to the acupressure points on the heels! Recommended for those who "can't sleep because their feet are cold." ●Size 22-25cm Retail Price: 3,500 yen (tax included) x 2