I have been looking at full fur trapper/russian style hats. The one I have been using since '85 is a partial, having a cloth/quilt body. The body easily gets wet, so the change to a full body. There are beaver (unsheared or sheared), Muskrat, Wolf, Coyote, Fox, and Mink. Which would be the warmest? Which does not freezee? My original is beaver. This is a substantial investment, so any input would be appreciated. I am not looking for recommendations for alternative hats, as I probably already have tried them.