I normally carry a very small backpack around but when I need my laptop or something else bigger, I grab the bigger one:
The problem is that I then need to move a lot of things from the small one to the big one or have duplicates (painkillers I can duplicate; notebook and glasses, I need to remember to move).
Is there a solution around these sizes where I can attach the smaller backpack to the bigger one?
I thought something like the Mira 2-in-1 Pack, but the problem there is that the detachable pouch is not a backpack but a sort of messenger bags.
Another alternative I thought of something like this:
and use a molle pouch as small backpack and have a normal backpack with molle weaving to attach it to. But it looks way too clunky.