Sorel Mens 1964 Pac Nylon - - Modern materials applied to a classic Sorel silhouette. This functional pack boot is ideal for any use from après ski to a trip to the store. A versatile boot for those who want a waterproof boot with a removable liner. Seam-sealed waterproof construction. UPPER: Waterproof backed synthetic textile and PU coated leather. INSULATION: Removable 9mm washable recycled felt inner boot. OUTSOLE: Waterproof vulcanized rubber shell with herringbone outsole. SOREL rated: -25° fahrenheit / -32° Celsius Shaft Height: 10.5 in. Heel Height: 1 in. Weight: 31 oz / 878 g. Measurements based on size 11.5. Imported.