Up to 6 hours of run-time with M12 REDLITHIUM Compact Battery Pack (NO BATTERY & CHARGE) Quick-heat function reaches selected temperature 3X FASTER One-touch LED controller with (3) heat settings Heating Zones: Chest & Back Washer and dryer safe Wind & Water Resistant Compressible design makes layering comfortable and easy. Reinforced high-wear zones protect from abrasion and tears 100% Polyester insulation keeps heat in, doesn't add bulk Adjustable waist with drop tail extended back (2) outer zip pockets, (1) inner zip pocket, (1) low-profile battery pocket Stay warm and comfortable with this Milwaukee M12 heated vest designed for versatile cold-weather protection. This black vest features innovative heating technology with both front and back heat zones powered by M12 12V Lithium-Ion battery technology. Perfect for outdoor activities and work environments, this vest offers targeted warmth where you need it most. Note that this is a vest-only product and the battery is not included. Available in size Small, this heated garment combines practical functionality with modern heating technology for reliable cold-weather performance.