Sitka rain jackets - Flash - Cloudburst do you size up?

[Cgeb]

Subject pretty much my question - Sitka rain jackets - Flash - Cloudburst do you size up? - I'm a 2xl in Sitka Jackets pretty much perfect fit for me. I have some one selling 3xl local to me. Do you size up for rainware?

 

[conhawa]

I have a Cloudburst in my normal size. Its roomy enough to layer underneath.