Wear colored shorts, not tighty whities – You’ll be wet and muddy down to your unmentionables. You’ll want to change out of those after the run. We do our best to provide some privacy for you to change, but it isn’t flattering to be seen in wet, brown undies. Besides, you may never get them that clean again.
Boxer/briefs might be the way to go for this one. They come in lots of dark colors, they are a little more form fitting, and they just might help to keep some of the mud out. Notice that we said “might”.