The Arctic Adventure boots are soft, supple and slimming, rated to minus 30 degrees, making them warm enough for the coldest winter day. They utilize a true women's last to create an excellent fit that looks and feels great. These lightweight wellies offer a tall, slimming look and a warm fleece lining. Key features include 4mm CR Flex-Foam which adjusts to the unique contours of your foot for a comfortable and stable foundation, resisting blisters and chafing. The upper is made of Neoprene, the lining is warm Fleece, and the sole is Rubber. For care, clean with cold water and use rubber boot care. Heel Height: 2.5 cm.