Powered by the revolutionary M12™ REDLITHIUM™ battery, the M12 Cordless LITHIUM-ION Heated Jacket delivers unparalleled comfort to users on and off the job site. This multi layered soft shell jacket utilizes new cold weather technology to actively warm the body and stimulate blood circulation. Three sewn in carbon fiber heating zones distribute heat to core body areas, with a stylish performance-fit that gives users maximum flexibility and comfort during use. The 2331 M12™ Heated Jacket features three heat settings, for varying heat needs and is water and wind resistant for a variety of weather conditions. Ideal for cold job site conditions and cold outdoor sports and activities, the M12™ Heated Jacket delivers continuous heat for up to 6 hours per battery charge. Available in sizes ranging from S - 3XL