The best packable lightweight rain jacket is made in waterproof or water-resistant material and comes with other foul-weather performance features. If you enjoy adventures outdoors, you already know a packable lightweight rain jacket is indispensable, but not all of them are the same. You’ll want one that’s compact and portable, meaning you can stuff it inside a pocket or pack and then pull it out when you need it—and expect it to actually keep you dry in the rain. Let’s explore the design features.
Durable Water Repellent, or DWR, refers to a preparation applied to the outer fabric of a rain jacket. It causes rain to bead up and roll off the material, similar to the way applying wax to a car windshield makes rain bead up and roll off the glass. DWR makes a jacket water-repellent, which is not the same as water-resistant or waterproof. The DWR treatment on a jacket is a maintenance item, so you’ll need to reapply or ‘reproof’ it once in a while for the material to repel water like it did when the jacket was new. Reproofing your jacket with a fresh layer of repellent is a fairly simple process.