Powered by M12 REDLITHIUM battery technology, Milwaukee M12 heated ToughShell jackets use carbon fiber heating elements to create and distribute heat to the chest, back, and front hand pockets. A one-touch LED controller allows users to select from three heat settings, delivering ideal heat for any environment. The new quick-heat function allows users to feel heat 3X faster than previous jackets and market competitors. For use in abrasive environments, ToughShell stretch polyester delivers 5X longer life than previous QuietShell jackets, and provides wind and water resistance to survive the elements.