Price Paid: $135
I've had my Impacts for about 4 years. THEY ARE very, very WARM.
NOTE: Please get them 1 size larger. I use them in sub zero and near zero when just standing (events, traffic control, etc) and they are great but I wish I had bought them larger. I wear them now with just sock liners and never cold. If I feel me feet even starting to get cool, I walk around just a little and I am just fine.
Liner boot comes out very easily to sleep with in winter camping, then makes a wonderful "tent slipper" when getting dresed in the AM.
The Impact has an ankle strap that helps in walking. This is NOT a hiking boot however, but I certainly can put a mile or two on in them. They're just BIG, warm, high boots. If you are not walking a lot and love warm feet, get these.