Our award-winning Flex luggage is designed with a wraparound expandable zipper for extra packing space when you need it. The Bigger Carry-On Flex is our best-selling, standard-size Carry-On designed to maximize packing space and fit most overhead bins of major US airlines. Unzip the Flex feature for an extra 2.25" (6 cm) of space and use it as checked luggage. Plus, enjoy the same features you know and love about our Classic Carry-Ons, including a durable hardshell and a signature interior compression system that helps you pack (and protect) more. Details like an ultra-sturdy handle, underside grab handle, and premium 360° wheels make it easier than ever to maneuver and lift your suitcase. It's a best-of-both-worlds type of thing.Prefer a smaller size? Try The Carry-On Flex, sized to fit all overhead bins when not expanded.Pack more and bring even more back. The Bigger Carry-On Flex is one of our best-selling sizes, designed to maximize packing space while still meeting carry-on requirements for most major US airlines. Ideal for trips lasting 4-8 days, it's a go-to for travelers who want extra room with the flexibility of a carry-on.The wraparound Flex expansion zipper expands the suitcase by 2.25" (6 cm), giving you added space for outfits, shoes, or souvenirs on the return trip. Inside, our signature compression system keeps everything organized and helps you pack efficiently.A durable hardshell protects your belongings along the way, while smooth 360° spinner wheels and an ultra-sturdy telescopic handle make navigating terminals effortless. An underside grab handle makes lifting into overhead bins easier, too.