Here in Michigan we've had an awesome winter so far, and I've had a good chance now to check out these boots. I just came in from slogging through over two feet of snow on the lake, half of that journey through 8" of water/slush underneath. Dry. I'd already taken them on a 6 mile trip through Bishop's Bog and it's "floating" walkway. Dry. And after a couple of hours of ice fishing today (19 degrees, w/c near 0), I can report they are warm as well. I'm usually not a review writer, but these boots deserve mention. Yes, they are made in China. True, the liners don't come out. But, even without any waterproofing at all my feet have stayed warm and dry through the worst this winter has had to offer. I am impressed.