Impressively comfy and durable, this M12 Heated 3-in-1 Ripstop Jacket Kit, Medium (2171-M) from Milwaukee is the perfect piece of clothing to wear in cold conditions. The rugged wind/water resistant Ripstop Shell and heated hoodie work together to deliver ultimate warmth, versatility and durability in extreme working conditions. Its carbon fiber heating elements provide adjustable heat to core body areas to keep you warm constantly. Plus, it can run up to 8 hours on the M12 REDLITHIUM battery.