Nikwax Tech Wash is the market leading cleaner that not only cleans, it also revives breathability and water-repellency, making your textile garment as good as the first day you bought it.Prolongs the life of waterproof clothing and optimises outdoor performance with an easy to apply treatment that can be applied by machine or hand wash.Lifts out dirt that can attract water and removes detergent residues left behind by previous washes that causes 'wetting-out'.Suitable for use on all fabrics, including technical textiles.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 DWR (Durable Water Repellency) on the outer fabric must be maintained to ensure comfort. Nikwax Tech Wash will revitalise the DWR and therefore breathability of your garment.