The multifunctional Thule Aion 28L backpack expands from a day pack to a 32L travel backpack for 15% more packable space, and has a convenient divider to separate your everyday items from your active gear. The bag's back panel fully unzips and opens like a suitcase for easier packing. Inside, a stowable divider with TPU lining helps to organize your gear while keeping moisture, odor, or dirt from spreading to contents in the rest of the bag. The travel backpack also has dedicated areas for electronics storage and a water bottle pocket. The Thule Aion Sling (sold separately) can be used with this backpack as a hip belt to bear extra weight and provide quick access to vital items.