I'm a college student in my junior year, and I have to say, of all the backpacks I've had, this is my FAVORITE!  I love it.  It holds everything, it has plenty of pockets to store writing instruments, calculators, organic chem model set, everything.  Plus, I love the water bottle pocket on the side.  It holds one of the big 32 ounce nalgene bottles!!  It's super sturdy, and it holds up to washing really well, plus it's cute!

And the shoulder straps are SUPER comfortable.  I can load 30+ pounds of textbooks and stuff into it, and it doesn't ever hurt my shoulders or back at all, and I'm a pretty average-sized girl!

If you're looking for the perfect backpack, look not further.  You will NOT be disappointed.  And you sure as heck don't need to spend a ton of money!  $40 for this backpack is really a bargain.  And of course, it comes with the usual Jansport lifetime warranty.  :)