experience constant warmth with our 28 zones heating system. Whether you're out on a hunting trip or riding your motorbike, this innovative underwear keeps you comfortable and warm. The smart dual switch and 3 heating levels let you choose your desired warmth and coverage, ensuring you stay cozy in any activity.
  Designed with high quality cotton fabric and velvet lining, our thermal underwear is both comfortable and machine washable. The built-in carbon fiber heating sheet ensures quick and safe heating, up to 131°F, while the low voltage USB port keeps the system stable and reliable. Perfect for both indoor and outdoor activities, this set is your ultimate companion in cold weather.