The Muckmaster Hi is MuckBoots' ultimate, all-weather heavy-duty boot. It offers extra durability, superior protection, and high-quality comfort, with features such as 100-percent waterproof, extra-thick, vulcanized rubber uppers, a crush-resistant toe, and a reinforced, heavy-duty traction sole designed to handle snow and mud. A contoured footbed and soft inner lining provide a comfortable fit, while extra rubber underlays and full bootie construction insulate the boot to sub-freezing temperatures. A removable, 6-mm, "Nitracel" EVA sock liner is included, providing additional, optional comfort. Ultra-durable and extra-comfortable, the Muckmasters make tackling your dirtiest and wettest chores that much easier.