I think I had one fall apart and they replaced it under warranty. They're not the most rugged packs but there's always a strength vs weight tradeoff. If you want something really BIFL and don't mind some weight and inconvenience, look for a USAF SKRAM pack on fleabay or similar. Or PM me, I know of a guy who has some that he'd be willing to sell. They will be on the expensive side compared to a consumer school-type pack though.