Stay warm during winter outdoor activities with this innovative heated vest featuring 23 separate heating panels strategically placed from collar to lower back for comprehensive coverage. The vest offers three adjustable heat levels ranging from 95°F to 131°F, allowing you to customize your comfort based on changing conditions. Simply connect your own USB power bank with 5V 2.1A output to activate the heating system. Constructed from lightweight polyester fiber, this vest provides comfortable warmth without bulk, making it ideal for hiking, skiing, skating, and other cold-weather pursuits. The heating panels distribute warmth evenly across your core and back, helping you stay active outdoors even in bitter temperatures. When you don't need heat, the vest functions as regular insulated outerwear. The vest is machine washable for easy care and maintenance. Available in multiple sizes from S to 2XL to accommodate different body types. The USB-powered design offers convenient portability and compatibility with standard power banks, making it a practical solution for extended outdoor adventures in winter weather.