I agree with those above. I have a pair of Neoprene 400gram but I can't hunt in them in cold weather. Personally I use Irish Setter 1000gram cold weather boots and can't be happier. They have scent protection and are completely waterproof. I'm not sure if you are a dipper, but another thing that people don't know is that nicotine cuts the circulation off to you extremeties, so that will make you colder as well. Good luck.