The M12 Heated AXIS Jackets and Vests from Milwaukee Tool are designed to deliver heat built for lightweight durability. Redesigned to reach three times faster heat, these heated products utilize lightweight and durable carbon fiber heating elements to bring comfort and warmth to the jobsite. A hidden battery pass-thru pocket construction allows for front or back battery placement, increasing comfort and flexibility depending on the task. With re-engineered AXIS Ripstop polyester fabric and reinforced high-wear zones, the heated AXIS program protects wearers from abrasion and prevents tears from spreading in harsh jobsite conditions.