A summertime European vacation calls for a sturdy wheeled suitcase, whereas backpacks will suit more rugged trips. Either way, the best carry-ons should be both capacious and easy to keep ...

or a sturdy backpack Though we don’t recommend any backpacks as a personal item in our guide, we tried the Patagonia Refugio Daypack 26L, our favorite backpack for students. It turns out that ...