The Caribou?features:

• Seam-sealed waterproof construction
• Waterproof nubuck leather upper
• Removable 9mm ThermoPlus?felt InnerBoot with Sherpa Pile?snow cuff
• 25mm bonded felt frost plug midsole
• Handcrafted waterproof vulcanized rubber shell
• Sorel AeroTrac?non-loading outsole
• Rated to -40 Fahrenheit/ -40 Celsius
• Shaft height: 9?/li>
• Heel height: 1?/li>