OKAMOTO Japan Good Sleep Night Care Relax & Warm Socks Toe Opener (1 pair)

Made with Okamoto’s exclusive "special heat-generating material" to keep you warm in the cold.
Specifically designed for the ankles, which are prone to chills, this sock uses a unique knitting method and heat-generating material to thoroughly warm the Sanyinjiao acupoint located above the inner ankle.
Warming the ankle area—where blood vessels are abundant—improves blood circulation and effectively warms the whole body.
 
Part of the "Kotatsu" series, which uses patented technology to warm your body starting from the feet. Whether you struggle with cold feet that make it hard to sleep or feel restless before drifting off, these socks wrap you in warmth from head to toe, as if you were nestled under a cozy kotatsu blanket.
 
Featuring cross-shaped heat-generating material placed at the Sanyinjiao acupoint on the ankle and the "Insomnia" acupoint on the heel, it promotes sleep and stimulates the body. A dual-layer heat-generating structure also warms the sole of the foot, where veins and arteries responsible for temperature regulation are concentrated, promoting blood circulation and keeping feet warm all the way to the toes.
 
These socks fully envelop the sole—rich in blood vessels—to maintain warmth. The open-toe design ensures your feet stay comfortable and dry without sweating during sleep.
A highly recommended gift for those who easily catch colds or have trouble sleeping—perfect for family, friends, or loved ones. Ideal for birthdays, Mother’s Day, Respect for the Aged Day, Christmas, and of course, as a thoughtful treat for yourself after a long day. For someone special, this warm and comfortable sleep accessory offers a sleep experience as cozy as resting under a kotatsu.
When washing, please use a laundry bag and mild detergent. Although the fabric offers excellent warmth, friction from wear and washing may cause pilling. If this occurs, gently remove pills with a fabric shaver.
 
Size: 22–25 cm (Women's)
 
Available Colors:
Pink
Lavender
Beige
Gray