The lightweight and durable Champlain 2 boot by Kamik will keep you reliable dry and comfortable all season long. Waterproof suede leather upper keeps your feet dry and warm this season. Front zipper for easy on and off. Waterproof gusset tongue and padded collar. Fixed 200B 3M Thinsulate and foam insulation for added breathability and warm comfort all day long. Moisture-wicking lining for a drier, more breathable foot environment. 8mm Zylex felt footbed provides excellent underfoot support and comfort. Waterproof synthetic rubber shell keeps out the wet elements. Features SNOWTREAD rubber outsole that provides great grip and traction for a variety of surfaces. Temperature rated to -40F or -40C. (Yup, this temp conversion is correct.) Measurements: Weight: 1 lb 9 oz Circumference: 8 1 4 in Shaft: 7 1 4 in Product measurements were taken using size 11, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.