The Self-heated Sock, made of high-grade material, is practical and durable for use. The bottom of the socks to warm and relax your feet in cold weather. Great to relieve leg pain and fatigue, regulate your nervous system and provide you with foot massage care. Suitable for skiing, climbing, skating, cycling in cold winter. Features -Color:Assorted Color -Material:Cotton -Size:28.00X9.50X0.20cm/11.00X3.73X0.08in - Perfect for hiking, skiing, winter fishing, jogging, winter hunting, biking, hiking, and snow shoveling, etc. It will bring you warmth in the cold winter. - The bottom of the socks has a self heat that heats itself to warm and relax your feet in cold weather. - For stimulating acupuncture points. Great for daily use. Relieve the food pain and fatigue, promoting the circulation. - Convenient to store and portable to take outside for travel. Suitable for skiing, climbing, skating, cycling in cold winter. - You can wear it and the elastic socks you feel comfortable to wear it, and the elastic design makes this sock different from others. Package list: 6 x pairs of Winter Socks