This pack is inexpensive and has all the features of a heavy pack, But it only weighs 1 pound 9.5 oz. The best thing about this pack is that its not $200 + like ula, go lite, etc.
Ripstop nylon seems thin but should be strong, this pack carries up to 25 pounds well (test run), probably more, but this pack is meant for fast and light people. Oh yeah and my knees are thanking me, i had a 4 pound 45L TNF pack before this.
(Brag) *My base pack weight is now only 7.6 pounds, not including food, water, or clothes.*