Onyx Computer Backpack Black. Seamlessly blended with 420D Jacquard, 1680D nylon, and 600D polyester, this rugged backpack is the perfect choice for techies and adventures alike! The backpack has a ton of features, including two large zip pockets, one side to hold writing utensils and the other to hold a bottle. The front of the bag has a spacious zipper compartment, along with a padded sleeve for a tablet. The spacious main c