This TerraSlate waterproof paper is pretty good and does exactly what I needed it to do.
I am using this paper because I need to have a copy of a hunting brochure on me at all times when I am hunting a specific area and not only is the area really swampy, but drenching rain is always a possibility in Florida.
Out of the package, I noticed 1 sheet of paper that already had smudging on it, but there were a total of 26 sheets in the package, so no harm-no foul (picture with yellow circle around the smudge).
When used with a laserjet printer, I have found that it prints quite well with almost no blurring. For really small fine print (4 %26 6pt), I can notice a slight fuzziness to it, but it is barely noticeable.
This paper truly is waterproof. For a test, I submerged a sheet in water for about 2 hours and then I let a couple of ounces of water puddle up on the paper and sit there for another 2 hours. After all of that, I only noticed a very small amount of the black toner color that had come off the paper (circled in red on the picture with the map.) and there was no smudging after pressing firmly and running my finger across the wet paper.
All in all, I am glad I got this paper and I am sure it will work perfectly for my needs.