Constructed from a waterproof nubuck leather upper, with a handcrafted waterproof vulcanized rubber shell, the Caribou will take care of your feet on those cold and snowy winter days. The 9 mm ThermoPlus felt innerboot with Sherpa Pile snow cuff helps rate this boot to -40 degrees fahrenheit. The seam-sealed waterproof construction will keep your feet warm and dry all day long. The Sorel AeroTrac non-loading outsole will provide you with the traction that you need when it is snowy and icy outside. For more than 50 years, Sorel has been a name that you can trust when winter strikes. Don't be caught out in the cold and snow this winter unprepared. Add a pair of Large Mens Sorel Caribou - Buff Winter Boots to your shopping cart today.