Description Powered by M12 REDLITHIUM Battery Technology, Milwaukee M12 Heated AXIS Vests use carbon fiber heating elements to create and distribute heat to the chest and back. 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 vests and market competitors. Hybrid construction featuring the new AXIS Ripstop Polyester provides a lightweight, compressible design that can be used as an outer shell or a mid-layer, and provides wind and water resistance to survive the elements.PRODUCT DETAILS: Heating Zones: Chest and Back Washer and dryer safe Wind and 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**BATTERY SOLD SEPERATLEY