How to: Revive Your Waterproof Rain Jacket
If your water resistant rain shell doesn't seem as water resistant as it use to be, it's time to give the coating a little revitalization to keep those beads forming, and your body dry.
Backpacker.com offers three ideas to restore the durable water resistant (DWR) coating on your rainjacket. None of them are particularly difficult, and only one requires procuring any materials or spending additional money. Give it a shot, and then get outside, regardless of the weather.