This bag is inspired by the Berlin-Tegel Airport (TXL) in Germany. It's body is coated with polycarbonate, making it resistant to water and dirt, and the exterior zipper is also waterproof to keep any liquids away from your belongings. The exterior features a zip pocket on the flap and another zip pocket under the flap. Plus, the backside has a strap that allows you to slide this bag over the handle of your luggage for easy transport. The interior consists of one large chamber with a laptop sleeve, one zip pocket, and three additional pockets. Ideal for school and everyday use, in addition to travel.