1003812 Sorel Women's Caribou The One, The Only. Winter is synonymous with Sorel's iconic Caribou - featuring seam-sealed waterproof construction, a sherpa snow cuff, extreme traction sole, and the ability to withstand chilling temperatures while still looking good. Midsole: 2.5mm bonded felt frost plug Outsole: Handcrafted waterproof vulcanized rubber shell with Sorel areo-trac non-loading outsole Insulation: Removable 9mm washable recycled felt inner boot with sherpa pile snow cuff Upper: Waterproof nubuck leather upper. Seam-sealed construction. Laces are not waterproof. Specifications Heel Height: 1 inch Shaft Height: 9 inches Platform Height: 1/2 inch Lace Length: 43 inches Sizing This boot runs a little big due to the tough, roomy liner that's perfect for thick socks. Consider sizing down if in-between sizes Product Care Refer to care label for specialized instructions.