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