Originally Posted by
High Fist Shin
I have had this bag for years:
Large Commuter Backpack | Banjo Brothers
Waterproof, bombproof, replaceable inner liner and it still looks like new. If anything ever happened to it, I'd buy another one in a heartbeat but I just can't seem to wear it out.
-Shin
I have the pannier backpack and it's not what you're looking for (although it's a great backpack-sits very well above your waist, very comfortable on your back), but I second the banjo brother recommendation. They're great bags and not terribly priced either.