Popular for cold protection and improved circulation! Self-Heating "Health Socks" Gently warms your feet, effective against fatigue, swelling, and coldness! Made with high-quality polyester cotton, they are soft, fluffy, and highly breathable, making them comfortable for long wear. Furthermore, the protrusions on the soles of the feet gently stimulate acupressure points✨ You can expect a refreshing and massage effect just by wearing them. ✔ Winter leisure activities like skiing and snowboarding ✔ Everyday use, camping, and outings ✔ Using them indoors is also a great way to save energy◎ Recommended for those who are sensitive to cold, as well as for gifts for family and parents✨ 【How to Use】 Wear them with the protrusions facing inward, against your skin. ■ Size: Free (24-27cm) Unisex ■ Color: Black ♡--------------------♡ 【Please Note】 ・Imported product. ・Although new and unused, they have been opened once for inspection. ・There may be minor scratches or color unevenness due to overseas transportation. ・Please contact us before leaving a review for initial defects (we will respond promptly). ・Cancellations due to size/image differences are not possible.