Try it and see for yourself how good Nikwax Tech Wash is - you'll be back for a bigger bottle! This is a very easy to use, non-detergent cleaner. Wash by hand or in a washing machine (please read the care label on your garment). It's safe to use on Gore-tex and other breathable, waterproof fabrics plus many other outdoor fabrics including fleece. It also helps revitalise breathability and water repellency in waterproof garments. (NB To re-waterproof a garment use Nikwax TX.Direct). Tech Wash 100ml Sachet - will wash 2 garments.