This lightweight shell with all-season features provides solid protection when a downpour sets in for the long haul. Waterproof and extremely breathable GORE-TEX fabric shrugs off the wear-and-tear of the trail, while TorsoFlo side zippers allow poncho-styles ventilation when body heat needs to escape. Feature rich, this jacket works as hard as you do, but packs down tight into the left hand pocket once the weather breaks.