Doane Paper, the maker of our absolute favorite notepads (see here), revisit their partnership with Topo to produce a second round of Mountain Briefcases. The pack is constructed from heavy-duty Cordura and Horween Leather and can be used in three distinct manners -- as a standard two-handle briefcase, a daypack, or an over-the-shoulder satchel. Talk about versatility. The backpack straps tuck away behind a hidden pocket to give the bag a clean look when in briefcase mode. Find the pack directly from Doane Paper.