I got this back in August and used it for ten weeks in the fall (my school is on trimesters). It's held up very well, with almost
no visible wear. That being said, it's not a heavy duty backpack and may be too small/thin for high schoolers or anyone who needs to carry heavy textbooks and/or binders. Because of the nature of my majors, I never have textbooks, so I was mostly carrying notebooks, folders, and relatively small paperback books. I occasionally carried my laptop in it (once a week at most), and it worked perfectly fine.
It is 100% cotton fabric on the outside with a polyester lining, but I can't figure out if it's washable or not. I e-mailed O'Neill
and got no response. That's my only problem with this backpack... Other than that, it was exactly what I was looking for: lightweight without being flimsy, attractive without being garish/childish (the color I bought it in is sold out, though), and big enough to fit a good-sized laptop and handful of other supplies.