Nikwax tech wash and txdirect in a handy twin pack tech wash is a soap based cleaner which can be used regularly to clean clothing and equipment without damaging the durable water repellent dwr coatings use this product instead of conventional detergents or washing powder txdirect adds water repellency and revives breathability to fabrics without wicking liners prolongs the effective lifespan and optimizes the performance of your wet weather clothing