What a cool idea! I’d love to swap out the strap on my usual bag for one, but you say these are on the short side, so I won’t. Still, I’m going to keep my eyes open. If you find good ones, please tell us.
ETA https://beistravel.com/product.....p-in-black
the specs say 20.75” and the model is carrying his bag higher than I like to carry mine, so I def agree with you on the length. Besides travel stores, I see they had them at Nordstrom. They’re sold out now, and none of the recommended other items are similar—they are all bags, which misses the point.
PPS with a little more poking around, I see that you can get pockets to put on straps. Gossamer seems to be a big name there. And Hermes tried something similar to the Beis strap once. https://bagaholicboy.com/2020/.....bag-strap/
Neither of those work for me—I like the way the pockets are integrated into the one you posted, and the fact that there’s more than one. I think I’d want 3—phone, cards, boarding passes. Maybe passport too, but that’d make it awfully wide.