One more vote for Andy's advice plus Adam's addendum. I have given up on Gore-Tex for winter outings here unless an unexpected warm spell drives temps above freezing. Otherwise, I get condensation inside the Gore-Tex shell that turns to ice when I stop being active, unless I change out garments..
There was a polymer fabric around that opened up spaces when warm and closed them when cold. By this means, it ventilated more when you were hot and less when you were not. It was, at least, highly water repellant and breathed far better than Gore-Tex. Net, it seemed to keep me dryer than Gore-Tex. When I tried to buy a coat made of it for the wife, I couldn't find one. I was told that the company using it stopped doing so because everyone has been brainwashed to ask for Gore-Tex as THE answer. It's ten years old now, and I'm "saving it" (for who knows what).
There was a polymer fabric around that opened up spaces when warm and closed them when cold. By this means, it ventilated more when you were hot and less when you were not. It was, at least, highly water repellant and breathed far better than Gore-Tex. Net, it seemed to keep me dryer than Gore-Tex. When I tried to buy a coat made of it for the wife, I couldn't find one. I was told that the company using it stopped doing so because everyone has been brainwashed to ask for Gore-Tex as THE answer. It's ten years old now, and I'm "saving it" (for who knows what).