I have a pair of Deer Slayer ( or something like that) 800g thinsulate and the work pretty well. I use them for icefishing and late november deer hunting. Never had a problem with them. Had them for 2 years now.

They were a little warm for Oct bow season in Michigan so i bought some Uninsulated Rocky boots and i hate them. They give me blisters and they outsides of them get saturated with water and makes them weigh a ton. Worst $120 I spent all year!