We go for at least a couple of days, and as many as 5 if possible, but intend on trying to do a 30 day trail hike. So capacity is needed for that to be a possibility. Her current pack is a 58 liter, but I'm not sure that it's ever been stuffed to capacity.

I weighed my new pack with the gear I'd take on an extended trip and it only weighed 34.2 lbs (minus the 3 lit hydration bladder). I carry the camp stuff, as well as the little one's bag and pad. The little one carries her clothes, a small stuffed bear, her pillow, and her 50 oz hydration bladder in a REI Sprig (12 lit) pack.

So SWMBO carries her stuff, the food and the kitchen gear.
_________________________
Bob


"Were I to leave where else would I go? Your words of life and of truth You hold." - Third Day