Rite in the Rain is famous for their paper. While most paper turns into a mushy mess in the rain, Rite in the Rain paper remains intact and you can still write on it even when it is soaked (if you have the right writing utensil). This paper is amazing stuff.
I have been using Rite in the Rain’s pocket notebooks for years. I used one most recently to record distances, azimuths, and pace counts on an orienteering course. There was a threat of a rain all day and while little more than a sprinkle ever fell on us, the Right in the Rain notebook handled it easily. These notebooks are a must whenever I am outdoors. It seems that I am always finding a use for them. I often use them in carbine training classes to record information and take notes. The notebooks also have rulers and map scales printed on the plastic covers. The rulers often come in handy on the range.
If you need to write in the outdoors, there simply is no substitute for Rite in the Rain products.