Patagonias trusted, fully seam-sealed Torrentshell 3L Pants for kids are made with a nylon H2No Performance Standard shell for exceptional waterproof/breathable performance, all-day comfort and long-lasting durability. H2No Performance Standard3-layer H2No Performance Standard fabrics are completely waterproof, windproof and breathable by virtue of an advanced combination of elements: a water-repellent shell fabric, a waterproof/breathable membrane bonded with an ultralight knit backer. The entire fabric package is highly packable, waterproof, windproof, breathable and built to withstand long term exposure in extreme environments. Garments made 3-layer H2No Performance Standard fabrics are designed for prolonged use in extreme weather.