Weatherproof Men's Slope Size 11 Lace-Up Sneaker Boot, Gray Features: Weatherproof® Colors: Brown Memory foam insole Flexible construction Warm boa collar Content: Upper: 92% Polyurethane 8% Polyester Lining: Polyester Outsole: Thermoplastic Rubber STRONG WARMING SYSTEM: Made with high quality materials. Keeps your feet warm and dry even when the temperature is cold. Warm comfy lining provides better protection in bad weather Durable & slip resistant: The rubber outsole is more stable, slip & abrasion resistant,and flexible in response to various outdoor terrain Perfect for various outdoor activities in cold winter, daily walking, work, shopping, hiking, trekking, travelling, camping, climb and trip outdoor sport. So easy to enjoy outdoor fun Good for holiday present/birthday gift