Model: AJ6

FIRE-PANTLINER heated underpants developed to keep you warm in cold weather. Ideal for wearing under ski pants, trousers, jeans!
The special heating elements in the knee and kidney area are close to the skin, allowing the heat to transfer ideally to the body. The pant liners are perfectly insulated by the layers of clothing worn over the underpants, keeping the heat in.
The battery pack goes into the right-hand pocket. The heat is turned on and regulated (3 heat settings) by pressing the push-button switch on the underpants waist band. Depending on the setting, the battery gives two to five hours of heat.
The heated underpants are yet another innovative solution to keep you warm and comfortable, whether during sporting activities or in everyday life!


  • Heated pant liners
    • Ideal for wearing under ski pants, trousers, jeans
    • Extremely thin, soft, durable material
    • Colour: black
    • Hand-wash only
    • Material: 85% nylon, 15% spandex
    • Large-sized heating element in knee and kidney area

  • Alpenheat controller with battery pack:
    • Heat duration 2 - 5 hours 
    • High power rechargeable Li-Ion batteries 7.4V / 2.2 Ah / 16.3Wh
    • 3 heating levels 
    • Push button operation 
    • Battery pack: small, light (105g) and compact (50 x 72 x 20mm)

  • Alpenheat Universal Battery Charger 100-240V 50/60Hz: 
    • USB 5V charging adapter worldwide use, charging cable with 2 outputs and either EU or US plug:
      • Input: 100-240V/50-60Hz/max. 0.5A
      • Output: 5V 2.4A
    • Charging time. 4 hours
  • 4 Sizes: Unisex
Set Content:

1 pair of underpants (AJ6)
1 battery pack (BP9)
1 charger (LG31)

Charging options:

The battery can be charged by plugging the USB charging cable LG33 into the USB charging adapter LG34 (both included in the set) and then into a regular household socket.
It is also possible to charge the battery using an alternative USB socket - simply remove the USB cable from the plug and plug it e.g. into a power bank, laptop or  in the car.