For consumers who desire a heavy-duty backpack made of waterproof, ripstop fabric, the Aqua Bourne waterproof laptop backpack is a good option. Made of sturdy polyester, this Aqua Bourne bag is fully padded and it holds a laptop computer or other device up to 17 inches. The Aqua Bourne bag offers plenty of space, including two exterior pockets as well as three pockets inside for additional items. The drawstring seals the bag tight so no water gets inside, and though the bag holds a lot, it is lightweight and comfortable to carry.