The Milwaukee M12 Heated Hoodie is powered by an M12 battery and features carbon fibre heating elements to create and distribute heat to the chest and back. It offers superior run time, providing up to 11 hours of heat on a single charge of an M12 12V REDLITHIUM 3 Ah Battery pack. This rugged heated hoodie is constructed from a durable 53% cotton exterior with reinforced utility pockets and a 47% polyester fleece lining to withstand tough outdoor conditions. It is machine washable and dryable, and includes an integrated cell phone pocket. The easy one-touch heat controller offers 3 heat settings: High, Medium, and Low. Multiple heating zones, with 3 sewn-in carbon fibre heating zones, distribute heat to core body areas. In autumn and spring, the hoodie can be worn as a rugged outer layer. In winter, it serves best as a base layer that allows you to shed bulky insulation.