Muck Boot Company Men。Muck Boot Company Muckmaster mid-calf boots provide commercial-grade protection for extreme conditions. Constructed with a 50% rubber and 50% nylon jersey upper, these waterproof boots feature a breathable thermal foam lining and a rugged, deep-lug outsole for superior traction on slick or muddy surfaces. The stretch-fit topline binding snugs the leg to keep warmth in and cold out, while the reinforced toe and heel areas offer added durability for heavy-duty work or outdoor activities. Designed for comfort in sub-freezing temperatures, they are suitable for farming, hunting, or industrial use. Note some minor cosmetic wear and surface marks on the rubber as shown in photos.