Nikwax 10oz Tech Wash Protector - Cleans effectively, reviving breathability and water repellency. 10oz, 300ml Nikwax Tech Wash® will revitalize the DWR and therefore breathability of your garment Cleaning with Nikwax Tech Wash® will not only remove contaminants, such as dirt and residues left behind by household detergents, but also revitalize DWR Use undiluted Tech Wash® and a sponge, or soft nylon brush, to treat stubborn stains before washing