• Heated winter socks for men and women. • Keep warmth and comfort all day long. • Ideal for skiing, hiking, hunting, ice fishing, and other activities. • Generate heat by themselves, relieve leg fatigue. • Eliminate moisture and leg swelling. • Dot matrix design to massage acupuncture points. • Promote microcirculation of the soles of the feet. • High-quality cotton fiber material, breathable and hygroscopic. • Suitable for outdoor sports and daily use. • Perfect gift for Christmas, birthdays, and Mother's Day.