Nikwax tech wash is a wash in cleaner for waterproof clothing and equipment that safely revitalises breathability and water repellency the product is a non detergent soap which can be used regularly to clean clothing ad equipment without damaging the durable water repellent dwr coatings use the product instead of detergents or washing powder to safely remove grime dirt and stains from the fabric it is recommended to periodically further wash the garment with a product such as nikwax tx direct th