Thule Aion Travel Backpack 28L (Nutria) 3204722The backpack for active days or weekends away 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