The Arctic Adventure boots are soft, supple, and slimming. Rated to minus 30 degrees, they are warm enough for the coldest winter day. These boots utilize a true women's last for an excellent fit that looks and feels great. They feature lightweight wellies with a tall, slimming look and warm fleece lining. The construction includes 4mm CR Flex-Foam for flexibility and warmth, and an EVA Midsole for added comfort. CR Flex-Foam adjusts to the unique contours of your foot, creating a comfortable and stable foundation while resisting blisters and chafing. The upper is made of Neoprene, the lining is warm fleece, and the sole is rubber. Care Instructions: Clean with cold water and use rubber boot care. Heel Height: 2.5 cm.