Hazel's Jewel Women's Natural Rubber Rainboot & Gardenboot with Adjustable Calf Opening Natural Rubber Imported Rubber sole and cotton lining. Shaft measures approximately 14 inches from top of the heel. Heel height is 1 inch and platform height is a half inch. Calf opening circumference is approximately 16 inches. Treaded outsole provides better traction than an average rainboot outsole.