With their great looks and durable design, these Muck Arctic Adventure Series Winter Boots are a fashionable and functional cold-weather choice. Crafted from CR Flex-Foam neoprene, these women&';s boots adjust to the contours and movements of your feet while absorbing impact with every step. An EVA midsole adds even more cushioning for all-day comfort during longer treks while the soft fleece lining keep your feet warm and dry even in extreme weather conditions. The design is easy to match with any outfit or outerwear, and the lightweight rubber outsole grips onto slippery surfaces to prevent slips and falls. Warm Lining: Soft, Insulation, Light-weight, Performance Materials for Warmth and Comfort Achilles Reinforcement Light Gripping Rubber Outsole 5mm Neoprene Bootie for Comfort and Performance Pull tab for easy on/off Lightweight Midsole for All Day Comfort and Support 100% Waterproof, 100% MUCKPROOF