Northside Women's Back Country Waterproof Padded Sherpa Collar Pack Boot 100% Suede, nubuck, and rubber Rubber sole Shaft measures approximately 9 1/2" from arch Heel measures approximately 1 1/4" Platform measures approximately 1/2" 200g Thermolite insulation Triple-stitched upper-to-shell bottom for rugged long wearing use Removable 8 MM felt liner with foil bottom and padded sherpa collar Quick D-ring lacing system Aggressive tread keeps you confident while the stylish cold-weather look does the same.