Ways to make a personal item travel bag more comfortable for tall people?
TLDR: I love personal-item-sized travel bags, but the length of the padding on the back is always too short and doesn't match the contour of my spine as someone above 6ft tall. Is there a way to mod it by taking advantage of the luggage pass through?
Context:
I frequently see complaints about personal item sized travel bags like the Osprey Daylite 26+6 due to its short height and completely flat back. This causes the bottom of the bag to dig into the mid back or cause friction entirely at that one contact point. I know you can bring another day bag, but it seems a bit excessive to bring a second bag inside the personal item, taking up more room, and requiring you to transfer stuff between bags. I am also unsure if most small packable day bags are comfortable enough to be considered an upgrade.
Despite the comfort issue, I've found that a small amount of extra fabric makes a huge difference and makes the bag's back match the contour of the spine. However, I haven't found a good way to make it stay in place and was wondering if others have ideas.
I'm wondering what others think about using snap fasteners to loop and keep in place a piece of fabric within the luggage pass through. i.e. like the snaps on a jacket so that it can be taken off and stashed away if needed. My only worry is with breathability since it may be hard to find a good fabric that is breathable and easy to sew on to.
Here is an example with the Daylite 26+6 using a folder t-shirt. In practice, I would try to sew the snap fastener to the bottom I think.
