The best trips are full of surprises, but gear fails shouldn’t be one of them. Guard against snafus by filling your duffel with equipment that’s versatile, packable, and durable enough to go the distance. These 12 products earned their place on our essentials list after travels across six continents and over thousands of miles by plane, train, bus, foot, and camel. What did we learn? The best travel companions are the ones that can keep up. No surprises there.