Although I do not own one, I would look to the suits that fit under your regular stuff. I do too much layering to wear anything else. I also, hardly ever wear a hunting jacket, too bulky. I don' t know what type off weather you have to deal with, but I am good this way down into the teens. They only jacket that I ever wear, is a non-insulated gortex, and thats only for extreme wind, or rain. JMHO.