The Un.loop is part of the Clarks Unstructured Collection. Featuring the latest air circulation technology, Un.loop offers unequalled comfort. Premium, full-grain leather or suede upper offers immediate wear with no break-in required. Breathable leather lining. Removable, vegetable-tanned leather insole reduces foot friction. Unique air circulation system features intake vents to allow cooler, fresh air to enter. Channeled mesh creates a defined path for warm, moist air to flow and escape through exhaust vents. Lightweight Ultra Flex EVA outsole sole reduces lift load and foot fatigue for all-day wear. Rubber outsole pads absorb shock and add traction without weight. Measurements: Heel Height: 1 in Weight: 9 oz Product measurements were taken using size 7, width B - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.