The best things to see out there aren’t always on a map. But before you range into uncharted territory, be sure to pack a fleece prepared for anything. Boundary Line’s grid fleece interior holds enough heat to ward off the chill in stop/start trekking. With a durable, smooth exterior that’s ideal for layering. Plus it packs 4-way flexibility, so you’re never left in a bind when the terrain gets iffy.