The original post: /r/travel by /u/Existing-Employee631 on 2024-11-13 17:48:13.

Criteria 1: has a clamshell zipper main compartment opening, with the non-opening side at the bottom of the backpack (i.e., it fully unzips around both sides and the top)

Criteria 2: has bi-directional/2-way luggage handle pass through straps, so that the backpack can go either upright or sideways on a rolling luggage bag.

The 2nd criteria is understandably difficult to find in bags, because it takes more engineering to make it work. I technically found one yesterday - the SwissGear Hybrid Travel Laptop Backpack 21.5 inch, which has the vertical strap for the backpack to go sideways on the rolling luggage, and then it has a horizontal strap at the very bottom portion of the backpack to make it go upright on the rolling luggage. However, the bag won’t stay on the rolling luggage since it’s only attached at the bottom. It would need a 2nd horizontal strap at the top to keep it in place (annoyingly, there is a piece of strap fabric at the top but it’s sewn fully into the bag - so close!).

Anyone know of anything out there? The main purpose of this bag would be as a personal item on airlines for travel within the US.