I love this backpack! Everything fits. There are many compartments. Unlike my old backpack, a Targus, everything gets strapped in with this backpack. My belongings are not flying around, which is better for my electronics. This backpack has individual places for a phone, wallet, pens, MP3 player, my lunch, a water bottle, a camera, umbrella, keys, my computer (18" Alienware), and more. It's waterproof (some areas) and sturdy. The metal, leather, and straps make this by far the sturdiest backpack I have owned. Finally, there are multiple straps. This was a little difficult to get just right, but I have it down now. Everything feels great for my 4 ten-minute walks through campus each day and when I travel. Oh, BTW, I get comments everywhere I use this thing. People are pretty impressed when they see it, which I think is kinda' fantastic!