Whether you’re trekking through the mountains or fighting your way through crowds of tourists, adventures abroad should never catch you without proper headwear. The Outdoor Research Sombriolet Sun Hat, complete with foam-stiffened brim floats , keeps the sun off your head during ray-intensive explorations. A mesh-lined crown and moisture-managing headband help keep you dry, while crown vents let you cool down the think tank when you’re overloading on the gorgeous views.