When the weather turns nasty on the trail, creek, or alpine route, the Patagonia Boulder Fork Waterproof Jacket delivers bomber protection without the bulk. This 3-layer H2No® Performance Standard shell keeps you bone-dry through torrential downpours while staying light enough at 13.7 oz to disappear in your pack when the sun returns. The low-profile hood with laminated visor maintains visibility whether you're navigating technical terrain or spotting rising trout, while watertight pockets provide secure storage for your essentials. Built with 100% recycled polyester and completely PFAS-free construction, this versatile shell proves you don't have to choose between performance and environmental responsibility – making it the perfect companion for everything from alpine scrambles to streamside adventures.