100% waterproof boot is made to endure prolonged cold conditions with a comfort range from sub-40º to 60ºF. Great for rugged outdoor activities in unpredictable climates. Stretch-fit topline binding snugs to calf to keep warmth in and cold out. Snag-resistant cover is lightweight, flexible and buoyant; forms to almost any calf girth. Features CR flex-foam bootie with 4-way stretch nylon and breathable airmesh and fleece lining. 2 mm thermal foam underlay is added to instep area for additional warmth. EVA molded midsole with contoured internal footbed and molded, durable, rubber outsole provide maximum stability. Offers wrap-up bumper, additional Achilles overlay and reinforced toe for extra protection. Convenient kick rim for hands-free removal. Hi-cut, black.