Hail to the King
Wow, this backpack is fantastic. I was a Grunt for a long time and I've used many large backpacks over the years in all shapes and sizes, but this sucker is HUGE! Dont let the pictures fool you. ;)
The good thing is the straps can be adjusted to compress it and make it smaller. The material is not military quality/thick(It's why they also so damn heavy), but the Osprey is just as strong/light for civilian use. With that said I honestly have to say that if I were to give this pack the same treatment I gave to my other military counterparts it wouldnt have lasted long.
Different materials/design for different purpose.
However with that said, compared to other civilian packs this is the best IMO. This baby has Lots of features, is extremely well made, includes the 'All Mighty' warranty, and it's made in the good old (Colorado)USA. ;)
For those wondering I'm 5'11" 185lbs and I have a Large size(Delta)