Frost Fighter Warm was developed for the coldest days of the year! An ultra-warm wool blend lining helps keep small feet insulated and warm down to -20 °with the help of the lightweight and insulating Elastopan outer body. An elastic band around the cuff helps lock in heat and keeps snow and debris out! An extra thick PU sole grips the ground with robust lugs and keeps plenty of space between the feet and the frozen ground.