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. Breathable waterproof garments are most likely to get sweaty and wet inside when used in damp or wet conditions. If the outer fabric absorbs water, the garment can lose up to 70% of its breathability. Therefore, the Durable Water Repellency (DWR) on the outer fabric of your jacket must be maintained to ensure comfort. Nikwax Tech Wash will revitalise the DWR and therefore breathability of your garment. The use of TX Direct should always be preceded by the use of Tech Wash which does a thorough job of cleaning the garment. The use of Tech Wash might be enough for a newer garment to restore water repellency, but TX Direct will do a better job on older garments of restoring the DWR coating.