Laptop Bags, Backpacks & CasesPackyourbags Travel Store has a range of laptop bags which includes laptop backpacks, waterproof laptop cases, laptop shoulder bags etc. Our laptop bags come in different sizes for laptop notebooks with different screen sizes. The most common sizes are 12, 15 and 17 inch screens. Most of the laptop backpacks have a padded laptop case sleeve which is usually detachable. Our laptop bags also have plenty of room for your other equipment. View all our laptop bags here.