To help you find the right bag, I’ve rigorously tested and reviewed a variety of backpacks, totes, shoulder bags, duffels, and rolling luggage so you don’t have to. And I’ve stuck to upper-echelon brands like TOM BIHN, GORUCK, Matador, and Zpacks (no cheap knockoffs here).

Next to a good carry-on suitcase, the right personal-item bag, with all of your necessities, is key to having a stress-free flight. Of course, as long as it fits under a seat, just about any...

Best Underseat Luggage Overall: Thule Subterra 2 27L Backpack Most Spacious Underseat Luggage: Briggs & Riley Baseline Underseat Duffle Best Underseat Luggage With Wheels: Travelpro Maxlite 5...

To find the best carry-on luggage that fits under airplane seats, we tested 21 bags in our New York City lab. We packed each bag with a weekend’s worth of clothing, a laptop, and a toiletry bag...