This all-season, lightweight shell jacket offers solid protection when a downpour sets in. Water-proof and extremely breathable GORE-TEX fabric shrugs off the wear and- tear of the trail, while TorsoFlo side zippers allow body heat to escape. This all-season, lightweight shell jacket offers solid protection when a downpour sets in. Water-proof and extremely breathable GORE-TEX fabric shrugs off the wear and- tear of the trail, while TorsoFlo side zippers allow body heat to escape. Laminated construction is lightweight and breathable with fully seam taped wind- and water-proof protection Double-separating center front YKK AquaGuard zipper and an internal front stormflap Torso-Flo venting via the hem-to-bicep zippers Dual drawcord hem adjustments and fully adjustable hood