Thermopads series of heating pads. They bring a natural warmth thanks to the unique composition of the content. They heat up to 45°C (113°F) and maintain an average temperature of 37°C (98.6°F) for 12 hours.
Add a hand warmer to your gloves to keep your hands warm in cold conditions. The pads are activated by air, so all you have to do is open the package and wait for the thermo pads to heat up.