The Microburst jacket ($150) from Atlantis is good for onshore excursions when a sudden rainstorm rolls through. The microfleece lined collar, stowable hood and chin and neck chafe guard will keep you comfortable, and the 2.5-layer waterproof and breathable shell will keep you dry. Weighing in at only 12 ounces, the Microburst stows away easily in a backpack, ready to go when you need it. Atlantis WeatherGear, 781-631-5371