Major flaw in the way Tenzing designed all of these packs, 4000, 5000, etc... Right where your two buckle straps attach to the waist belt will rip, 100% gauranteed. These two straps are only sewed 50% to the one strap that goes all the way around the waist. When sinching your waist, any uneven torque rips the material wide open, exposing the inside of the waist belt. Would be an easy fix at a seamstress, but who wants to go to that trouble after droping $400 on a pack!!!! I didn't get the pack. LOL.