When you notice your waterproof/breathable jackets and pants starting to soak up water, it's time for this stuff. TX-Direct will make water bead again plus rejuvinate the breathable membrane's capabilities. Wash your garment first (we recommend Tech Wash) and while still wet, zip up all closures and lay it flat. Spray evenly and remove any surplus with a damp cloth. No heat is required to set the product, simply air dry or tumble dry on low.