The Muckmaster Gold boot provides comfort in all weather conditions. With a stretch-fit top-line binding, these work boots stay snug to your calves; keeping warm air in and cold air out. Standard Fit Waterproof Sole Has No Anti-Static Properties Sole Not Liquid-Resistant 100% Waterproof 2mm thermal foam under the footbed for extra warmth Breathable mesh lining wicks away humidity and perspiration Stretch-fit comfort topline binding snugs calf to keep warmth in and cold & debris out Lightweight EVA midsole for comfort Standard Fit Waterproof Sole Has No Anti-Static Properties Sole Not Liquid-Resistant 100% Waterproof 2mm thermal foam under the footbed for extra warmth Breathable mesh lining wicks away humidity and perspiration Stretch-fit comfort topline binding snugs calf to keep warmth in and cold & debris out Lightweight EVA midsole for comfort