Weatherproof Men's Carl Waterproof Camel Insulated Flat Heel Winter Boots Sz 11M. Crafted from a mix of real suede and durable rubber that's waterproof. These lace-up boots also have an additional adjustable closure at the top to keep your feet warm and protected against the elements. Wear over jeans or pants. They feature: waterproof insulated, the closure type is lace up, the shaft circumference is 16 in, boot shaft is 10 in, the shoe heel height is a 1/2 inch, upper/outer base is 100% suede leather, the shoe lining is nylon textile, the sole material is 100% thermoplastic rubber, the toe shape is closed toe or bike toe and the heel style is flat. These hit about right below where your calf is.