Pack it like a suitcase, use it like it’s not. The Karl 48h+ Travel Backpack fits a lot in. It’s just as good for a long weekend in the city or for a 10-day beach trip (depending on your packing philosophy, of course). The size is adjustable and, even at its fullest, your hands are always free. Padded back and shoulder straps, along with an adjustable chest strap, make the Karl 48h+ comfortable to carry all the time. The large zip-open back also makes packing easy and organized.