I've had this backpack for almost two years now and have put it through all kinds of hell. 50-lb rucks, 2,000 ft climbs, and even college have not been able to wear this bag down. It has shown minor signs of wear and tear, including one or two lose threads, but that is to be expected. It's very customizable and adjustable, allowing for a great amount of comfortability. I carry about 20 lbs of books, my laptop, and other gear daily and it has yet to be uncomfortable. I have recommended this backpack to multiple friends and will continue to do so.