Here are some other packs that I saw, liked and purchased.
I liked this pack because it was the largest in the Camelbak line of packs, it had one deep pocket and was 22L gross and 19 net capacity. One serious downside is that the bladder is not modern and there is no disconnect or drain.
The Kompressor Plus is a 20L pack. Unlike the Camelbak above this Marmot is down to 18L when I add the 2L water bladder. Although there is a water drain. One interesting comparison with the Camelbak is the location of the frame pad. If you use a bladder with the marmot the bladder is separated from your body by a piece of fabric where the Camelbak frame is between you and the bladder.
The Klymit Stash 18 is just small. And while there is room for a bladder it means having to leave some gear behind. In the previous post I slimmed down to one night with barely enough food.
What is interesting and compelling about these pictures is that they really help sell the product. There are some realities about the volume and amount of gear you really want to carry. That said this is what these packs really look like.
There are simply not very attractive and there is no way I would buy them. So clearly it's a matter to forget the fashion and work on the function.
And so with the biggest of my packs being the Camelbak Arete 22 I packed all my gear and there was plenty of room given the previous constraints. It does not look like the pretty sales material but at least I know this is a solid 2-3 night pack now that I have extra room for food and a trowel.