CLARKS Unstructured Women's Un.Cumin Oxford 100% Leather Rubber sole Heel measures approximately 1" Platform measures approximately 1/2" Elastic lace closure system creates a fantastic fit. Perforated leather interior lining adds breathability for a healthier inner environment. Vegetable-tanned leather footbed provides additional support. Unique Air Circulation System features intake vents to allow cool, fresh air to enter. Ultra Flex EVA outsole with rubber pads reduces lift load and foot fatigue for all-day wear.