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. The boots are 100% waterproof and feature 2mm thermal foam under the footbed for extra warmth. A breathable mesh lining wicks away humidity and perspiration. The stretch-fit comfort topline binding snugs to your calf to keep warmth in and cold & debris out. It also has a lightweight EVA midsole for comfort. Upper: Rubber; Lining: Mesh; Sole: Rubber. Care Instructions: Clean with cold water, and use rubber boot care. Heel Height: 2.0 cm.