Thule Aion Sling BagThe shell fabric, lining, and mesh are made of 100% recycled materials. The bags 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. Interior zippered pocket keeps smaller items secure Doubles as a supportive hip belt when used with Thule Aion