Waterproof, BLC-compliant suede upper material. Waterproof construction for protection from wet weather. 200g of Heatseeker™ insulation for added comfort and warmth. Fleece inner lining for comfort all day. Dual injection-molded NorthLight EVA shell is lightweight and durable. Injection molded EVA midsole for excellent cushion and impact protection. Midfoot internal nylon shank for additional support. Winter Grip® rubber outsole offers excellent traction and durability. Comfort range: -25°F / -32°C. Imported. Product measurements were taken using size 11, width D - Medium. Please note that measurements may vary by size. Measurements: Heel Height: 1 in Weight: 1 lb 4 oz Circumference: 13 in Shaft: 6 in Size 11.5