Tech Wash by Nikwax

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.