Developed with versatility in mind, the Arctic Outpost series delivers all of the protection and comfort Muck Boot are known for. Key features include 5mm CR Flex-Foam, a fleece lining, a new EVA midsole for cushioning, and an aggressive traction outsole for reliable grip. The upper is made of Flex Foam, the lining is fleece, and the sole is EVA. Care instructions recommend cleaning with cold water and using rubber boot care products. Heel height is 5.0 cm.