Unisex, Size 13 Men, Brown, Wetland Muck Boots, Comfort Range: -20 Degrees Fahrenheit, -30 Degrees Celsius, To 50 Degrees Fahrenheit, 10 Degrees Celsius, 5 mm CR Flex-Foam, Breathable Air Mesh Lining, Eva Contoured Molded Midsole, Ms-1 Molded Outsole, Comfort Topline, Calf High Extended Rubber Overlay.