My winter footwear are Steger mukluks, I don't oil or grease the lower leather or the upper canvas. Felt booties inside along with a couple soles in the bottom for extra thermal break from the cold ground. The breath well, cotton socks are still dry after a full day. This is how a house should function. For wet slush and mud I have the same set up but with rubber overshoes, military chem boots, my sock are still reasonably dry but there is moisture on the inside of the rubber, they have to come apart to dry. No wonder paint peels.