Womens Rain Boots Size Wellies Flat Wellington Knee High Festival Welly Snow Rubber sole Heel measures approximately 1 inches" Platform measures approximately 1.00" Natural Rubber, Rubber sole and cotton lining. Treaded outsole provides better traction than an average rainboot outsole. Shaft measures approximately 10" from arch Rubber rain boot in knee-height featuring expanding gusset with dual contrast straps Calf opening circumference is approximately 14 inches.