The timeless choice for cold-weather work and recreation, the Caribou offers the best protection and comfort. Starting at the top you have a Sherpa Pile snow cuff to keep snow out, then the upper boot is made from waterproof nubuck leather for an unparalleled level of style and protection. The shell is made from hand-crafted, waterproof vulcanised rubber for sturdy insulation and the Sorel AeroTrac non-loading outsole provides sure footing. A very comfortable, removable 9mm ThermoPlus felt inner liner traps heat in pockets around your feet and sits on top of a thick rubber mid-sole which insulates the boot from the cold ground. These boots are rated to -40 degrees so your feet will always be warm, no matter how long you're in the snow for.