Where are y'all hunting to get so cold? 800 grams of thinsulate will keep a cup of coffee warm for 7 days.
That's why there feet are getting cold because they are sweating,until this year I have always worn the old lacrosse or bean boots,never had any insulated,I bought some muck woody sports this week and the past two days my feet have been warm with just regular socks with temps in the upper 20's