Sojourn Porter 30L

I have the osprey sojourn porter 30 and it hits all these marks except it has a laptop sleeve and it's not technically expandable, however it uses compression straps so it really is all about how full you pack it

In my experience with my packing style, I get more into the Mini MLC than the 26+6 even when expanded. And it carries much more comfortably, like night and day different. I wonder if the Osprey sojourn Porter 30 might be a better match for you though?

I never thought about the hip belt size as I am petite (5'1"), so I only pick backpacks that are under 35L and up to 46 cm in height. Still the overhead size limit puts Osprey Sojourn Porter 30L out of my options. Two things lacking in the Cabin Zero Classic 36 are a sternum strap and laptop access

If you have a shorter torso, the Osprey Sojourn Porter 30L would be a good match for your priority list. However, as mentioned in the Pack Hacker review, the bag does better as a travel backpack than a day bag.

At 19.3H X 14.6W X 10.2D IN (49H X 37W X 26D CM) It’s too big and notably too deep, even for overhead on most airlines. Osprey did a face plant on that bag and the Sojourn Porter 30 too.