The coldest game I ever refereed was 38°, but later in the day it warmed up to 60. I know all about layers having lived the first 18 years in Milwaukee. Sunday, I have two games. The forecast calls for snow, 29° at kickoff, 16° wind chill. By the end of the last game, it is supposed to have more snow, 31° by games end with wind chill of 20°. Turf field, so no chance of them getting cancelled. My question is...one pair of merino wool socks or two? What all do you wear when you are in that kind of weather?