The Milwaukee M12 Heated Jacket Black - Medium, supplies heat on demand with sewn in carbon fibre heating wires to distribute heat to core body areas and to the front pockets. Superior run time, up to 8 hours of heat on low level with a single battery charge of an M12™ REDLITHIUM™ 3.0 Ah battery pack.   Bare Unit - battery and charger NOT included - sold separately Easy touch heat controller - 3 heat settings: High, Medium, Low TOUGHSHELL™ stretch 90% polyester and 10% spandex material to withstand harsh working conditions and deliver up to 5x longer life FREE FLEX™ mobility - additional material under the arms increases range of movement for working overhead New battery pocket design providing users multiple options for battery placement, allowing adaptability to the situation Improved slim fit design with extended back prevents heat loss and keeps the user warm M12™ battery controller with 1 A USB port, to charge mobile devices stored in concealed battery pocket Water and wind resistant, provides comfort and durability in harsh environments Big hand & chest pocket, ideal for storing mobile devices Flexible battery system: works with all MILWAUKEE® M12™ batteries Machine washable and dryable Milwaukee M12 Heated Jacket Black (M)