If you're in CDO, then I'm sure you are familiar with Kyle Jennerman and his YT channel "Becoming Filipino."
Have you noticed that even in the close-ups of his face, he never seems to be sweating?
How is this possible despite climbing mountains with a backpack containing his drone PLUS a heavy video camera mounted on a selfie stick?
Finn Snow is the same. They both will remark, "it's so hot today," but I never see any sweat on their faces.