I bought these pants because I was looking for a pair of pants to keep the wetness out my but since I sit down in the snow a lot since I am a snowboarder. Prior to my Arc'teryx, I had two pairs of Burton and Bonfires that simply were not up to the task. All this past winter, my Arcteryx scorpions completely keep the water out in all conditions. One day we snowboarded for six hours in constant moderate rain. Every piece of my clothing had leaks, except for the Arc'teryx scorpion pants.
The pants were a medium and fit very well. I bought it off internet and the color was not quite what I expected, but I really like the color. The side zips that allow air flow do not have any mesh, so if you need to vent, you risk, getting snow in your pants.
Overall great pants, would buy them again, no doubt