I really can't figure out why I would bring two. Even if my shower pass touring jacket got wet inside from rain or sweat I would just wipe the inside dry with my pac towel. I could see bringing two if they had lining inside that would remain wet. The shower pass doesn't. So one rain jacket for me. One wind jacket for windy and misty mornings.... The rain jacket only gets worn when pouring rain or really cold mornings to trap body heat. YMMV.