Now arriving: our Expandable Carry-On Hard Shell Suitcase - 21". Ultra-light with a super sturdy polycarbonate shell, this carry-on packs it in with interior compression panels and a removable laundry bag for your dirty clothes. Breeze through the airport with smooth-gliding, Japanese-crafted Hinomoto 360 degree wheels, a TSA-approved lock, a handy telescopic handle, and YKK zippers. Looking for something a little smaller? Check out our Expandable Carry-On Hard Shell Suitcase - 20".