Huge capacity there, but a bag like that is going to kind of suck if the load isn't square. Also, why are all the straps a foot too long? There should only be a little bit more than what is needed at maximum extension, otherwise the thing is going to be a total medusa when cinched. I also disagree with the usage of buckles rather than just adjusters for the cinch straps, why would you ever unbuckle them? Just adds weight and something to break.

Go get a deuter, arcteryx, mountain HW, osprey, or even a jansport. I'll get flamed (again) for saying this, but the backpacks being made by the mess bag companies are straight up cave compared to the ones from real outdoor gear makers.