Our M12™ Heated AXIS™ Vest delivers HEAT BUILT FOR LIGHTWEIGHT DURABILITY. Powered by our M12™ REDLITHIUM™ Battery Technology, this lightweight and durable vest features an advanced heat technology system utilizing carbon fiber heating elements and Quick-Heat functionality, distributing heat 3X faster than market competitors to the chest and back. A hidden battery pass-thru pocket construction allows for front or back battery placement, increasing comfort and versatility. With re-engineered AXIS™ Ripstop polyester fabric, this MILWAUKEE® vest prevents tears from spreading while keeping the heat in and not adding bulk. The compressible, wind and water-resistant design can be used as an outer shell or mid-layer vest depending on the situation.