The 30L SOVRN Drifter is a convertible carryon backpack designed by the SOVRN Republic team to maximize carryon space on budget airlines globally, comfortably fitting in the overheads of most economy sized airplanes. The 30L Drifter backpack has a 3 way convertible design, where it can be quickly switched between a traditional backpack, a brief case and a messenger bag with the included detachable strap, depending on your carry needs. The backpack is constructed from a durable water resistant waxed canvas and uses top of the line #10 YKK RC Luggage zippers with lockable pullers for the main two compartments. All of SOVRN Republic’s travel backpacks come backed with a 24 month warranty that covers all workmanship and hardware.