I purchased this backpack to use for college or work or to take to the gym. I had a hard time finding a backpack that had all my specifications, but this one fits the bill! It has two side pockets, one for your water bottle and one for your coffee mug. The smaller zippered compartment has good organization with smaller pockets for pens and a clip for your keys. The outside mesh pocket is great for a bike helmet but especially useful for carrying a light jacket or throwing things in at the last minute. The back of the backpack is stiff and well-padded which helps the bag maintain its shape and makes it suitable for carrying a laptop. And the cell phone pocket on the back strap keeps your phone handy.