Nikwax Tech Wash is the market leader; it has been specifically designed and optimised for breathable waterproof fabrics. Nikwax Tech Wash is a highly effective cleaner. Additionally it will revitalise 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.