Unisex, Size 9 Men/10 Woman, Black, Chore Hi Muck Boots, Comfort Range: Sub Freezing To 65 Degrees Fahrenheit, 18 Degrees Celsius, 5 mm CR Flex-Foam, Breathable Air Mesh Lining, Steel Shank, Easy To Clean Rubber Overlay, Triple Toe & Quadruple Rubber Heel Reinforcement, Durable, Quick Cleaning Sole.