A carry-on backpack is a suitcase that grew straps. The useful ones tell you their liters, their empty weight, and whether the maker still claims they fit a typical 22 × 14 × 9 in domestic template. We only log those published numbers.
What we compare on this hub
- Empty weight from the brand spec sheet (torso sizes can differ — we note that).
- Opening style: clamshell vs top-load, because packing cubes behave differently in each.
- Laptop sleeve claims (size in inches, as the maker states).
- Warranty language on the official site.
What we do not do We do not invent “best overall” scores. If you want lab abrasion tests, go to a lab publication. This page is a ledger of bags that still exist and still publish specs.
Related makers: Peak Design, Osprey, Cotopaxi, Aer.
