I was working as an editor in New York City, and a carry-on from ... hard shell luggage accounted for almost 8 percent of the US luggage market by volume in 2010; by 2015, that number was just over 16 ...
2. *Or* a lightweight three-piece luggage set that comes with a 28-inch suitcase, a 24-inch suitcase, and a carry-on 20-inch suitcase. They each have a TSA-accepted lock and 360-degree spinner wheels ...