Comfortable, waterproof CARIBOU™ boots with seam-sealed construction, suede, and ballistic nylon upper. Iconic lug design for traction. UPPER: Waterproof nubuck upper. Seam-sealed waterproof construction. Laces are not waterproof. INSULATION: Synthetic insulation. Removable 9 mm washable recycled felt inner boot with Sherpa pile snow cuff. MIDSOLE: 2.5 mm bonded felt frost plug. OUTSOLE: Handcrafted waterproof vulcanized rubber shell with Sorel aero-trac non loading outsole. HEEL HEIGHT: 1 in. PLATFORM HEIGHT: 1/2 in. SHAFT HEIGHT: 9 in. LACE LENGTH: 43 in. Please note: Laces and zippers incorporated in SOREL footwear are not waterproof. Measurements based on size 9.