Mickey Boots are Extreme Cold Weather good too -20* degrees below zero. we usually have only Boots with the valve. Most sizes are in stock, some may have to be ordered in.This may take 1-7 days too ship or arrive. Other spellings of Mickey Boots,Micky,Mickie, miky Boots. Mickey Boots are Extreme Cold Weather Boots, Made for the U.S. Military. Good too 20* degrees below zero. I used these Boots in Alaska, Germany, Korea and Upstate New York. Ask any Hunter, Carpenter, Soldier,Ice Fisherman, these boots never fail to keep you warm. If your Feet were naked, wet, and you were standing in a snow bank, and these boots were left out all night,and all you had to eat was an MRE cracker, you could put them on and warm up instantly. You still might be Hungry, But your feet would be warm.