I wasn't thinking of PVC/Nylon but if it works, it works. I appreciate the input. Keep it coming. I'd like a lightweight suit but if it's not feasible or 4X cost then maybe the PVC/Nylon is the way to go.
FWIW, I much prefer the lightweight, stretchy, packable PU coated polyester over the heavy, rigid PVC found in most regular yellow rain coats.
In light moisture, I like a softshell like the Kuiu Guide jacket, but if it bad enough for me to need a waterproof shell, I want it to be really waterproof, not just DWR coated, water-resistant material.