2-more cents for any future shoppers.
I’ve been using a G-Pack since last October for my 3-4 day outings. My base pack weight is 15 lbs (spring, summer, fall). Push the G-pack over 25 lbs and it 1) is probably crammed too full, 2) will begin to feel fragile and about to tear whenever you lift it. The biggest drawback has been lack of cubic volume not its low weight capacity.
I have grown very fond of the wrap-around mesh sack. You can stuff just about anything into it. I use it for my Z-lite thermarest, rain gear, book, and nalgene bottle. It looks a little disorganized but so what? I do too after a few days out.
Honestly, I bought this pack without thinking too much. I would have picked the Z-pack, if I had stayed within the manufacturer’s line. The biggest advantage is that it forces you to pack light and small, and to treat your equipment with respect. But any lightweight pack should do that.
DoubleRev