The Men’s Wolf heated jacket vest brings you versatility, warmth and control over your own heat. It’s built-in heating system uses conductive-thread technology, powered by an industry-leading 6500 mAh Lithium-Polymer battery. This combination gives you up to 10-hours of heat at your fingertips. Imagine looking great and controling your own heat. Whether you are battling the chilly morning commute, meeting up with friends on the town or running errands, this is the jacket you'll reach for.