Every piece in the Thule Aion collection has versatile design that lets you use one bag for a variety of activities, or combine bags to utilize new functions. Durable fabric with a PFC-free water-resistant coating. Thule Aion’s waxed canvas is free from toxic PFCs and keeps belongings dry in bad weather. This durable fabric develops a patina that looks even better as it ages. Bluesign® certified and made of recycled materials. All Thule Aion bags are made of recycled materials. They’re also bluesign® certified, a strict criteria that ensures the protection of workers, consumers, and the environment.