Classic neoprene work/field welly. Extra-durable, oil-resistant sole. Deep cut, high grip tread. Reinforced toe, instep & heel. Steel shank for optimum arch support. AIRMESH - Thousands of tiny vertical fires allow air to circulate throughout the interior surface. Excess humidity and perspiration are quickly wicked away, creating a comfortable environment for your feet. Stretch-fit topline binding snugs calf to keep warmth in and cold out. Neoprene Bootie. Comfort Range - SUB ZERO to 18C