If your traveling takes you outside the confines of airports, hotels, and business conferences hopefully it does, then rolling luggage, although convenient, doesn't make a whole lot of sense. Eagle Creek realized this, and developed the DoubleBack 22 Carry On Bag to give you the best of both worlds. Keep the bag together and roll it to your hotel, or use the backpack straps and the tuck away hip belt to pack the whole thing in if the pavement turns to sand. When you set out for day trips, remove the front pack, transfer the backpack straps from the main bag to the front daypack, and leave the main pack behind while you check out the sights. Both bags feature 420D Helix ripstop fabric so they will withstand the abuse of your adventures. Interior and exterior compression stacks will keep your bag tight, instead of all loose and floppy. And a deep front zippered front pocket will house your important travel documents nicely. When you're out hiking around with the daypack, you can keep hydrated, because this baby is hydration system compatible.