(2019-July-9) I bought this backpack at my college bookstore around 2013 and I still use it each and every weekday. This bag has seen things. I took the train until late last year; it's made 5,000+ 10~30 minute walks to & from the train. When the train's died, it's made far longer trips. It went all over campus until I graduated & has been all over downtown Denver since. It sat next to me in class & at my desk at work for the better part of the 2010s. It's seen all of the elements including blizzards & downpours.
All these years later, the bottom is fairly dirty, but you can't tell (imagine a train floor during a blizzard...). It's had a few coffee incidents in the middle pocket but the coffee never made it to the computer and the coffee smell went away after a day or two. The material didn't remain "crusty" or change colors; you'd never know if you saw it today.
I know... "ew".
The padding underneath is pretty worn out so I'm a little more gentle dropping my computer in it or setting it down these days. Likewise the padding in the right shoulder strap (the one I favor) is pretty flat. I've picked it up by that strap, like what... 30,000 times?
My shirt slowly rides up if it's not tucked in, but I'm used to it... just have to pull my shirt down occasionally.
I keep thinking about replacing it but I just can't, there's nothing else that meets my needs like this. It has to carry my computer, notepad, tablet, lunch, coffee, big headphones, vape stuff, water bottle, battery pack, umbrella, gloves, beanie, and whatever else I'm lugging around, and keep it all safe & dry. If that stuff is wet, it has to contain the wetness. It also has to keep my keys, sunglasses and wallet very safe and yet easy to access. It does all that stuff. I've strapped a sweatshirt in it like they show many times.
I just need to figure out how to wash it. This backpack has been unbelievably good to me.