I would say that they are water "resistant" . . . not "proof". Everyone at my gym asked me the same thing . . . I told them the I would not swim or shower with them, but I do quickly run them under cold water to clean-off my sweat and anything else that's on my skin during the day (fragrance, moisturizer, lotion, etc.). I would probably have no problem running in the rain with them . . . if I was that dedicated. ;)