My goal was a simple day bag that didn't have a ton of complexity.
Only a few pockets. I included a nice large flat front pocket for my phone/keys/ etc...the main large compartment has a padded sleeve for a tablet or computer and just enough room for almost any daily gear. It is sized like a school backpack and not much bigger. If you can't fit what you need it will help you question if you need it.
Made out of Ballistic nylon this bag holds it shape and exceeds durability standards. I don't think you will destroy it.