Just the right amount of pockets.  the laptop area is large enough to hold a sweatshirt and the interior is room to hold many things as well that you might want to access on a flight.  This is the perfect carry on that you can also put on your back to free up your hands while traveling for suitcase(s), passports, boarding passes, etc.  The organizer bags that come with this are perfect for holding socks in one and underwear in another.  I let my wife use the largest of the three.  :)  I would up using them in my main suitcase, but they're a nice extra that really help with travel.  No digging trough your suitcase for socks!  Comparable to having a small chest of drawers with you.