The Muck Boots Edgewater II Multi-Purpose boots offer a comfortable fit around the calf with an angled topline and extended rubber upper for additional protection. These boots are designed to be a long-lasting classic. They feature a 5mm CR Flex-Foam construction for a comfortable and stable foundation, a breathable Airmesh lining, and extended rubber coverage. The boots also include Achilles reinforcement and an aggressive waffle high-traction outsole for superior grip. The CR Flex-Foam material adjusts to the unique contours of your foot, resisting blisters and chafing. The upper is made of Rubber/Neoprene, the lining is Breathable Airmesh, and the sole is Rubber. Care instructions recommend cleaning with cold water and using rubber boot care products. The heel height is 2.0 cm.