Core Heating Technology: Features evenly distributed carbon fiber heating wires for rapid warming to comfortable temperature, intelligent temperature control system ensures stable temperature without overheating or chilling Outstanding Battery Performance: 5000mAh high-performance lithium battery with USB charging support, one charge meets all-day outdoor activity needs, keeping you warm in cold conditions Comfortable Wearing Experience: Made with premium 70% modal fabric, soft and skin-friendly, excellent moisture-wicking properties keep feet dry and comfortable Professional Sports Design: High-top design perfectly wraps ankles, 168-needle precision knitting ensures proper elasticity, seamless construction reduces friction discomfort Multi-functional Application Scenarios: Specifically designed for skiing enthusiasts, also suitable for hiking, trekking, camping, fishing, winter sports and various outdoor activities Safety and Reliability: Strict quality testing with overheat protection and short circuit protection functions ensure safe usage Fashionable Color Options: Available in three stylish colors - Black Orange, Grey, and Pure Black to meet different aesthetic preferences Thoughtful Packaging: Beautiful color box packaging suitable for personal use or gifting, the ideal companion for winter outdoor activities