The M12 Cordless Heated Jacket is a multi-layered soft shell jacket that uses advanced technology to both, warm the body and stimulate blood circulation. The style of the jacket allows for complete comfort and flexibility in addition to providing heat to the core body areas, whether working on and off the job. The jacket allows for three heat settings for various needs. It is also water and wind resistant, making it perfect for any weather condition. 6 hours of heat per battery charge provide long-lasting comfort and warmth.