Nikwax Tech Wash® is the market leader; it has been specifically designed and optimized for breathable waterproof fabrics. Nikwax Tech Wash® is a highly effective cleaner. Additionally it will revitalize 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. Use undiluted Tech Wash® and a sponge, or soft nylon brush, to treat stubborn stains before washing. Remove all non-washable parts. Shake well before use. Follow care label instructions. Do not use detergents. Top Loading Machine Wash: 1. Place maximum 6 garments in washing machine. 2. After the machine has filled, 5floz/150ml for 1-3 garments, 8floz/250ml for 4-6 garments. Add an additional 50ml for hard water* areas. 3. Set cycle to Heavy and Warm. 1-3 items: low water level, 4-6 items: medium water level. Front Loading Machine Wash: 1.