You can take the Dakine 365 Pack 21L with you to school or work. Your 15-inch laptop fits into the padded laptop compartment. You can store other items such as your lunch and your diary in the main compartment. You can put your phone or wallet in the front pocket so that you can easily reach it. Do you want to put down the backpack on the way? The bag stays firmly upright thanks to the padded bottom. The 365 Pack also has a hip strap, so you can carry your bag extra comfortably. Note: we may use mood images that might show the same product in a different color.Note: the size of your laptop, like 15-inch or 17.3-inch, is the screen size, not your whole laptop. If your laptop has wide bezels around the screen, it's better to choose a laptop compartment that's a size bigger. That way you'll know for sure that your laptop fits.