Nikwax Tech WashR is the market leader it has been specifically designed and optimized for breathable waterproof fabrics. Nikwax Tech WashR is a highly effective cleaner. Additionally it will revitalize existing Durable Water Repellency DWR and revive breathability. It is the safe way to thoroughly clean your waterproof clothing and equipment. Application in a washing machine is quick, easy, and ensures that the whole garment is thoroughly cleaned.Nikwax Tech Wash Soap Features: This product is a non detergent soap which can be used regularly.. Clean clothing and equipment without damaging the Durable Water Repellent DWR coatings. Water Repellent DWR coatings. Safely revitalises breathability and water repellency Use this product instead of detergents or washing powder.