Designed to be used on performance clothing, Nikwax Tech Wash is a non-detergent soap which can be used regularly to clean outdoor clothing without impairing the waterproofing properties of the garments. This means your high-performance clothing lasts longer and retains their breathability and water repellence. Use Tech Wash to ensure that your gear is not only clean but keeps you protected and comfortable while exploring the great outdoors. Also available in alongside 100ml for taking with you when travelling. Find More All Nikwax Products. Nikwax's Tech wash is a non-detergent cleaner designed specifically for technical outdoor clothing. It won't leave any nasty residues behind like ordinary detergent or fabric softener can. Nikwax Tech Wash Textile Cleaner Features: This product is a non-detergent soap which can be used regularly to clean clothing and equipment without.