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.