Moody skies on the hiking trail? With this lightweight and packable shell jacket, it won’t be a problem. It’s made out of a durable, 3-layer PROOF™ fabric in recycled polyester with a plain face and recycled membrane to supply breathable weather resistance. Ventilated underarms help you stay comfortable on the move. You’ll also find an adjustable hood and a set of zippered hand pockets for cold hands or trail snacks.