I've had this bookbag for two or three years now, for highschool. I had it monogrammed, which is a nice feature since several people at my school also had the same style of bookbag. It comes in ten different colors, and it is perfectly acceptable for girls or guys to carry this around. I lugged it about five days a week, and it held up pretty well. Of course, it looks a bit worn after all this time, but I really can't expect too much; after all, I am pretty rough with my stuff.
Well, this bookbag comes with an awful lot of features. It has two mesh side pockets for water bottles, and even an audio cord port (you slip your mp3 player inside, pull the cord through, and listen without having to hold your player), and the material is water resistant. It also has reflective strips as a safety feature. Besides monogramming, you can also add a little figure playing sports, like soccer or tennis (these features cost a little bit extra).
The bag can hold a LOT of weight. At some points during the school years, my bag weighed up to 40 lbs (it was awfully hard to breathe with all that weight sitting on my back, but I had so many heavy books I had to carry). It's a good thing the quality is so high, otherwise it probably would have ripped or torn a long time ago. I also never had a problem with the zipper getting caught or snagged, which can be a real pain. It has large pockets with lots of little organizational features for sorting pens, pencils, and other school supplies.
The bottom line: This is a highly reliable bag that won't rip, tear, or fall apart on you.