Muck Boots Muckmaster Hi Wellington BootsAnother classic in the Muck line up, the Muckmaster has served farmers and an array of outdoor workers for nearly a decade. With its tall rubber overlay, these rugged boots withstand sharp objects and are extremely warm, even standing in a wet field. Breathable Airmesh Lining Calf High Extended Rubber Overlay 2mm Thermal Foam Under the Foot Bed 5mm CR Flex Foam EVA Contoured Molded Midsole MS 1 Molded Outsole Comfort Topline CR Flex Foam adjusts to