Thule Aion 40L travel backpack features a removable rolltop bag and has the maximum capacity still classified as carry-on compliant, making it the perfect backpack for air travel.

The backpack's removable rolltop bag has a TPU lining that ensures odor, moisture and dirt doesn't spread to the rest of the bag. It's also easy to clean and is perfect for storing sports gear or dirty clothes. The carry-on bag has dedicated areas for electronics storage and a water bottle pocket. The Thule Aion Sling (sold separately) can be used together with this travel backpack as a hip belt for extra weight-bearing support and quick access to essential items.

Bluesign® certified and made from durable recycled materials
The shell fabric, lining, and mesh are made of 100% recycled materials. The bag’s rugged and durable waxed canvas fabric develops even more character as it ages and has a water-resistant finish that is free from toxic PFCs. All Thule Aion products are bluesign® certified, which ensures the protection of workers, consumers, and the environment.