The Columbia Mobex Winter Omni-Heat Backpack is a lightweight pack that uses Omni-Heat thermal reflective technology. Omni-Heat technology employs a special fabric liner to reflect body heat back to the pack. The heat ensures that the three-liter Hydrapak and its hose doesn't freeze in cold temperatures.

The Omni-Heat Backpack is made of ripstop nylon and is mounted on a flex frame for comfort and durability. The innovative pack is available in three colors and sells for about $129.00 US each.