Try this....
Put on a pair of nylons(knee highs)......from your wife.
Then a pair of good wool socks....then your boots of choice
When on stand use a pair of Artic shield booties
If on stand for a long time, put in some hand warmers up in the toes of the booties
Note~don't lace your boots too tight, that will cut the circulation of blood to your feet. Also when going from set to set, don't set the heater in your vehicle to blow on your feet that will cause them to sweat.