ActionHeat Mens 5V Heated Base-Layer Pants are created to keep you warm for hunting or outdoor work, without the use of bulky layers. These ActionHeat heated pants are designed to be worn as a base layer, with 3 built-in heating panels on the legs and seat. FAR infrared heating and ActionWave reflective technology deliver hours of heat and comfort. The system utilizes 5V rechargeable batteries and comes with a powerful 6000mAh power bank that can also be used to charge your phone, tablet, or any USB device. Touch-button adjustment provides warmth for 2 hours on high, 3 hours on medium, and 4.5 hours on low. ActionHeat 5V Heated Base-Layer Pants for men include a power bank and USB charging kit. 92% polyester/8% spandex. Ultrafine carbon-fiber heating panels. Machine wash. Imported. Sizes: S-2XL. Color: Black. Type: Pants.