DWR (Durable water repellent)
Water repellency will break down over time. We recommend treating with a water repellent refresher like Nikwax. This product restores the chemical finish that beads water off the fabric.
If you're in the rain or very wet environments long enough, it's important to note that even treated fabric will start to take on water.
Here's a link to the product, it's available online and at most outdoor retailers: Nikwax TX direct