The Muck Boots Ladies Brown Cordavin Arctic Sport II Mid Boot is an extreme conditions sport boot. The Arctic Sport II Mid is a 10'' boot that delivers the same warm and comfortable performance features as the Arctic Sport II Tall in a shorter boot that's even easier to get on and off. A perfect choice for cold snowy conditions. Features include 5mm neoprene insulation, an extended rubber exterior upper, a comfort insole with Dual Density EVA Footbed, along with a slip resistant rugged outsole and a warm fleece lining. Comfort Range: -40 degrees f to 40 degrees F.