The Nikwax Tech Wash and Softshell Proof Wash-In Duo Pack helps you clean and revive your softshell outerwear after a long season in the backcountry. Nikwax's non-detergent Tech Wash safely cleans technical fabrics without leaving a water-attracting residue, so it won't affect the garments' DWR treatment. The Softshell Proof is a wash-in coating that revives the water repellency of your softshell garments without compromising breathability.