These boots feel like slippers!  They are roomy, so if you wear extra thick socks to keep your feet extra warm, these boots will still fit.  They are not super warm on their own, but are warm enough for the winter weather in the mid-west.  Just wear thicker socks if you need the added warmth!  I have worn these in the snow and have not felt a drop of moisture soak through.  They are very cute, very comfortable, and fit great!