Three days. What do you grab? The Carl Friedrik 72 Hour Backpack is made to be the go-to carry-on for short trips and weekend getaways. The main compartment unfolds and packs like a suitcase without the bulk, with eight pockets to stow essentials. Premium nubuck leather is brushed to a suede-like texture with panel detailing that recalls Carl Friedrik's line of hardshell luggage, and an integrated holder slots into the trolley system of any of their suitcases.