I have worn these for duck and deer hunting and my feet stay dry and very warm. I ordered half a size up so I could wear 2 pairs of socks and they fit perfectly. I have stepped in water and mud and they have not leaked. Great boots!

UPDATE APRIL 2014: I have been wearing these as my only hunting boots and they are still nice and warm and waterproof! Awesome boots!

UPDATE NOVEMBER 2016: Still wearing these as my only hunting boots and all of the above still stands. Warm and dry boots!