DungHo Max Gusset Extreme Cold Conditions Barnyard Boot Just as tough as the original DungHo with added fleece lining for warmth and adjustable gusset for big calf comfort. Same features of the original DungHo plus… DS1 molded outsole for grip on rugged terrain 6 layers of insulating warmth and protection EVA cold-blocking midsole 5.5 mm bootie; 2.5 mm DENSOPRENE XD foam (extreme density) for extra protection; 2 mm airmesh; 2 mm warm fleece lining Removable molded EVA sockliner Adjustable Gusset Style – customize to fit larger calves for optimum comfort and protection with our expandable gusset and adjustable locking strap. Extra room also accommodates layers of clothing being tucked into the boot. Double achilles heel and instep reinforcement for comfort and protection Nylon shank