A good suitcase disappears into the background of a trip. A bad one breaks a wheel at the worst moment. Here is what to look at before you buy.

Carry-on or checked?
Most U.S. airlines accept carry-on bags up to about 22 x 14 x 9 inches (56 x 36 x 23 cm), including wheels and handles. Limits differ between airlines and are often smaller on international and regional flights, so always check your airline before you fly.
- Carry-on (20–22 in): weekend trips and business travel; no waiting at baggage claim.
- Medium checked (24–26 in): one to two weeks of travel.
- Large checked (28 in and up): long trips or family packing. Watch the airline weight limit, commonly 50 lb (23 kg) for economy.
Hard-shell or soft-side?
- Hard-shell (polycarbonate or ABS) protects fragile contents, resists rain and wipes clean. Polycarbonate flexes under impact; ABS is lighter but more rigid.
- Soft-side (nylon or polyester) is often lighter, has outside pockets and can squeeze into tight overhead bins.
Details that matter
- Wheels: four 360° spinner wheels glide beside you; two inline wheels handle curbs and cobblestones better.
- Handle: a telescopic handle that locks firmly at more than one height, with little wobble.
- Zippers and locks: sturdy, smooth zippers and a TSA-accepted lock, which security staff can open without cutting it.
- Interior: compression straps, a divider panel and a zip pocket keep things in place.
- Weight: every pound the empty bag weighs is a pound less you can pack.
Caring for your luggage
- Empty and air out your suitcase after each trip before storing it.
- Wipe hard shells with a damp cloth and mild soap; spot-clean fabric with a soft brush.
- Clear hair and grit from the wheels so they keep turning smoothly.
- Store bags in a cool, dry place; nesting smaller cases inside larger ones saves space.
Next: our packing checklist.