Love your products.My second pair. First pair's rubber cracked through and feet were getting wet while drilling holes ice fishing.I Spend a lot of time outdoors in Manitoba climate.-30c is typical. Use your products for driving tractor,ice fishing, trapping ,hunting and snowmobiling. Was a big fan of the sorrel glacier before they moved production overseas and the product quality suffered. Baffin is as good. Never have to worry about cold feet. Two suggestions:improve Durability of rubber bottom. the rubber will crack in less than a year making them not suitable for cold wet conditions. . These are not inexpensive boots. Other issue is, the sole tread is totally unsuitable on glare ice. No tread is good in these conditions but a straight air bob sole(similar to Sorel Glacier) is far superior. The ice field hybrid sole was better for my wife in the same conditions but I could not safely walk.