The M-65 waterproof fishtail parka was first used by the U.S. Army in the Korean War as a lightweight shell to keep soldiers dry. The design allowed soldiers to wrap the back of the coat around their upper legs for ease of movement and more waterproof surface. Recently the “hope I’m cool enough to stay here” Ace Hotel teamed up with Alpha Industries — known for military-inspired casual wear — to revive the storied coat. Retaining the classic M-65 style while updating it with a washed nylon shell, stay-dry seams and modern lines means you can throw this on and hike through unknown forest and muddy embankments before strolling directly into the board room, unscathed. Don’t whine to us if the muddy boots give you away, though.