Dual side zippers make the waterproof NexGrip "Avalon 2.0" dress/casual boot easy to slip on and off. The leather-and-suede shaft has membrane waterproofing, waterproof zippers and 200g Thinsulate® insulation rated to -31 degrees Fahrenheit. Patented retractable stainless steel cleats in the treaded, anti-slip sole can be flipped open to bite into ice when needed and folded out of the way for normal weather conditions. Removable fleece-topped foam insole. Men's whole sizes 8 to 16 in 4E width