Thoroughly inspected by Toby.
You can take all your school and work things with you in the Case Logic Campus Uplink 15 inches Trellis Balsam 26L. This blue backpack has several compartments and a matching pencil case to store your supplies in. You can use the large front compartment to bring a 15-inch laptop, tablet, or book, and store your notepad in the smaller compartment. In addition, the backpack has 2 front compartments, one of which has a useful hook for your keys. The Campus Uplink also has 2 mesh side compartments for your bottle of water or small umbrella. This is useful, because your laptop will stay dry if the drinking bottle leaks.
Note: the size of your laptop, such as 15 inches or 17 inches, is the size of the screen, not your entire laptop. If your laptop has wide bezels around the screen, it's better to choose a laptop compartment that is a size bigger. That way, you'll know for sure that your laptop fits.