Our M12™ ToughShell™ heated jacket is powered by M12™ Redlithium™ battery technology and features an advanced heat technology system that combines lightweight and durable carbon fiber heating elements, quick-heat functionality, enhanced fabric construction, and optimized interior liners to deliver heat built to outlast. Our new generation ToughShell™ stretch polyester has been re-engineered to stretch and move as you work while being as tough as previous ToughShell™ jackets. This Milwaukee® heated jacket has a unique battery pocket pass-thru design that is easy to use with front or back pocket battery placement, allowing you the versatility and comfort needed depending on the situation. This Milwaukee® heated coat is a go-to for protection from the elements on the jobsite or when enjoying the outdoors. Milwaukee® 204B-21L M12™ Heated ToughShell™ Jacket with M12™ Battery, Charger and Power Source, Wind/Water Resistant, Black, L