The Secret to Never Paying for an Extra Checked Bag Again

You know the drill: you set off with one tidy suitcase, and somewhere between the souvenir market and the duty-free shop, your belongings multiply. Suddenly you’re either leaving treasures behind or forking over cash for a second checked bag. The fix is simpler than you think.

Foldable travel bags have been a quiet favorite among frequent travelers for years. These soft-sided totes, backpacks, and duffels collapse into a pouch small enough to slip into a jacket pocket or the side of your carry-on. On the way out, they cost you nothing in space. On the way home, they become a second bag for that ceramic vase, the stack of local spices, or the extra pair of shoes you couldn’t resist.

They also double as a day bag during your trip. Use one for a trip to the market, a beach day, or a hike—then fold it flat again when you’re done. The key is the material: unstructured and lightweight, these bags compress without adding bulk.

One thing to keep in mind: if you plan to use a foldable bag as a personal item on the plane, check your airline’s size limits first. Dimensions vary, and you don’t want to be that person wrestling a duffel into the sizer at the gate.

We’ve tested dozens of these bags across cities and continents. The best ones hold up to a full load and fold down to nothing. No upgrade required—just a smarter way to carry it all.