UPPER: Durable water and wind resistant PU coated synthetic textile upper. Drawstring with barrel lock closure.MIDSOLE: 2.5 mm bonded felt frost plug. Removable 13 mm Sorel Meltdown midsole. OUTSOLE: Handcrafted waterproof vulcanized rubber shell with Sorel aero-trac non loading outsole. SOREL rated: -100° Fahrenheit / -73.3° Celsius Shaft Height: 12 1/5 in. Heel Height: 1 2/9 in. Platform Height: 4/5 in. Calf Circumference: 17 1/3 in. Measurements based on size 9. Imported.