I know this topic hasent been posted in awhile but seeing the thread brought up some my early experences in Arctic Alaska.
Today is March 24 and its two above Zero as I write.Ive spent all my alaska time above the arctic circle.
I was from rural Northern Nebraska and landed a job as a aircraft mechanic in Barrow Alaska
my first day on the job (27 March 1989 was -32F) I had worn what I thought was ok back Nebraska I managed to make it through ok without freezeing anything off, I noticed the other mechanics wearing basketball shoes and wool socks they had excellent traction on the hardpacked snow that is normal on Northern Alaska airports so moving aircraft by hand having good traction was a crutial, the shoes are designed to breathe and wick away persperation, the key to staying warm is circulation and keeping your feet dry, I was given a pair of old Sorrell pac boots with felt liners, early on they were warm but after working outside for a couple hours they were a bear after standing out on the ramp for hours doing maintenance, by lunch break the liners were soaked with persparation, I found the liner froze to the bottom the boot I had to thaw the boot so I could get the liner out, then I saw what others were doing they wore pack boots with felt insoles and liners and some even used R30 reflectex insulationunder the insoles, If we had to travel to a remote village to retreve a plane, We could count on being there a couple hours standing on the frozzen gravle ramps, On occasion Ive spent a work day 8-14 hrs in minus 17 to 28 degree temps, the coldest was minus 48F working in those nice stiff arctic breezes they have there, Keep your feet dry and wear a vapor barrier.
I have a couple pairs of rubber boots one BOG and the other MUCK both can be pretty cold as your feet sweat it acts as a excellent heat sink wicking away your body heat, you might as well be standing bear foot on hard packed snow! heat transfer is what you have to remember, Ive worn cotton socks with doubled garbage bags over my feet and then the normal pack boots Im able to go quite awhile that way but your feet will be soaked wet but warm which can cause foot health problems if done too much. best bring extra socks and boot liners, boots with sewen in insulation are very difficult to dry out and I avoid them.
I own White Bunny boots they do get cold too so keep your feet dry use a dry terrycloth washcloth to wipe inside the boot dry and swap in dry socks.
I like wearing airforce canvas mukluks and swap in dry liners for especially cold weather in the minus double digets.