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