Our award-winning Flex luggage is designed with a wraparound expandable zipper for extra packing space when you need it. The Medium Flex is our midsize checked suitcase, perfect for long trips (1-2 weeks). With a Flex feature that expands for an additional 1.75" (4.5 cm) of space, you'll never have to worry about making it all fit. Plus, this hardside suitcase offers the same thoughtful details as our classic luggage, including interior organization, 360° spinner wheels, and more.