• The heating socks feature a cabinet-type heating element that provides even heat and strong heat retention, ideal for resisting the cold. • Made with a high-quality polyester and cotton blend, these socks are elastic, breathable, quick-drying, and comfortable to wear. • Designed for men and women, they are washable and flexible, perfect for keeping your feet warm during the winter. • Ideal for winter sports such as climbing, hiking, hunting, and cycling, keeping your feet away from the cold outside. • A perfect gift for family and friends, especially for the elderly, to enjoy a warm winter. • Specifications: Polyester cotton fabric material, applicable size 36-43, input voltage 5 V/1 A, power 5W, temperature around 45℃.