H2No Waterproofing from Patagonia

Patagonia’s waterproof and breathable fabric, the H2No® Barrier keeps wind and water out while allowing vapor from sweat to escape the garment, keeping you warm and dry. Available in 2, 2.5, and 3-layer constructions, laminating performance fabrics with a waterproof and breathable coating creates this system. All H2No®-equipped gear from Patagonia is rigorously tested to ensure that the coating will endure through multiple washes and extremely rough use.