WE BROKE SCIENCE and created carry-on luggage that holds up to 20% more than other carry-ons with the same exterior dimensions. That means you can fit up to 3 days extra worth of clothes.  Featuring best-in-class materials, YKK Zippers, 360-degree silent glide wheels, micro-welding technology, integrated TSA locks, and expansion when you need it. Method has been rigorously tested in over 30 real-life simulations and has proven to stand up to the demands of travel. Also available in  size.