Timbuk2 Navigator Duffel Bag Imported Zipper closure 8" shoulder drop 15" high 27" wide Small (40L) can be carried on; stuffed out Medium (70L) must be checked Large main pocket with internal organizer for keeping things in place Two external zip pockets with top flaps for weather protection Hide-away padded backpack straps easily clip in for hands free escapades Bottom zipper compartment doubles as an envelope for storing the duffel