The Hardshell DUO-Pack breathes new life into your grubby, well-worn tech outerwear. Give your manky jackets and pants a wash with Nikwax's Tech Wash, a non-detergent soap that safely cleans them without damaging DWR treatments. After everything's clean, run a cycle with Nikwax's TX. Direct Wash-In treatment to quickly revive water repellency without compromising breathability.