>>1828108I have the jääkäri L and jääkäri S
Best backpacks I've owned and the modularity makes everything a dance in the wheat fields because all the pouches are completely interchangeable.
I can take the S for day hikes and even make it work for for one nighters with extra pouches and the L is big enough for pretty much everything else.
One thing I have noticed that I will mix and match the pouches randomly depending on what I need. Only rarely I end up with the same setup twice.