Thinsulate is an insulator, Gore-Tex is a outerlayer membrane that is waterproof & windproof.
One thing with Gore-Tex you need to know is that you need to wash it 5 to 6 times a year, to maintain it's waterproofing, it's a chemical bonding process.
Give Gore a call and ask questions they are very helpful & knowledgeable.
I have used Gore-Tex for years, great for staying dry & is a really great outerlayer to keep you warm in brutal cold.
As long as it's cared for properly Gore-Tex will serve you well for years.