Quick Answer

To get the most from the Roundtrip Carry-On & Medium Check-In Set, pack the carry-on with daily essentials and the medium check-in with bulkier items, using the expansion zippers only when you need extra space.

Why the Two-Bag Split Works

The set pairs a carry-on with a medium check-in, so you can keep your most important items with you and still have room for everything else. The medium bag handles the heavy lifting, while the carry-on stays light enough to lift into the overhead bin without a struggle.

Expansion: Use It Wisely

Both bags expand up to 2 inches, which adds real capacity when you need it. But expanded bags are harder to fit in overhead bins and closer to airline weight limits. Expand only after you've packed the main compartment, and remember to check the airline's size rules before you fly.

Step-by-Step Packing Process

  1. Sort by weight and fragility: Lay out everything you plan to bring. Group items by weight and breakability. Heavy items like shoes and toiletries go in the medium check-in; fragile or essential items like electronics and documents go in the carry-on. If the carry-on feels heavy when you lift it, move some weight to the check-in.
  2. Pack the medium check-in first: Start with the medium bag. Place heavy items at the bottom near the wheels. Roll clothing to save space and use the built-in organizing compartments for smaller items. Leave the expansion zipper closed unless you run out of room. A common mistake is overpacking the check-in and then having no room for souvenirs—leave a little slack.
  3. Pack the carry-on with daily essentials: In the carry-on, put items you'll need during the flight or on the first day: a change of clothes, toiletries, medications, and valuables. Use the interior compartments to keep things from shifting. Remember that liquids must meet TSA carry-on rules—check the 3-1-1 guideline.
  4. Use expansion only when needed: After packing both bags, zip them closed. If something doesn't fit, open the expansion zipper on the relevant bag to gain up to 2 inches. Do not expand both bags unless absolutely necessary. An expanded carry-on may not fit in overhead bins—verify dimensions with your airline.
  5. Weigh and balance the bags: Use a luggage scale to check both bags. The carry-on should be under the airline's carry-on weight limit, and the check-in under the checked bag limit. Distribute weight evenly so the spinner wheels roll smoothly. If the check-in is overweight, move heavier items to the carry-on or remove non-essentials.

About the Roundtrip Set

  • Roundtrip® Carry-on & Medium Check-in Spinner Set: This set includes a carry-on and a medium check-in spinner, each with tip-resistant expansion that increases packing capacity up to 2 inches. You can add a few extra items without needing a third bag, as long as you stay within airline size and weight limits.

    Roundtrip® Carry-on & Medium Check-in Spinner Set

    Roundtrip® Carry-on & Medium Check-in Spinner Set