HKM Heated VestHKM Thermal Heated Vest Introducing the HKM Heated Vest, the ultimate in luxury and functionality. With temperature adjustability from outside, integrated heating function, and a warm up zone on the back for maximum coziness, this vest is both stylish and practical. The light cotton filling and elastic side parts ensure a snug fit, while the 5,000 mA battery provides up to 4 hours of continuous heating. Plus, with two exterior zippered pockets, your