Because it leaves no detergent residue, using Nikwax Tech Wash for all cleaning of your waterproof-breathable garments will help get the longest possible life from the factory applied DWR (Durable Water Repellency).
This wash-in treatment restores the durable water-repellent finish of all waterproof-breathable laminates and coatings. Pre-wash your items with NikwaxTech Wash or another mild soap, then add this treatment in a washing machine.
