This sandal is a clear descendant of our mid-1990s Open AirWair product, but here the solid, chunky look has been sharply contemporised by a mixture of experimental detailing and innovative cuts. Featuring the original Dr. Martens air-cushioned sole, providing underfoot comfort and durability since 1960. It is oil and fat-resistant, tough and offers good abrasion and slip resistance. This is a Goodyear-welted product. The upper and sole are sewn together, not merely glued, like many footwear constructions. This, together with our Z welt-stitch and heat sealing process, makes it unique to Dr. Martens. Dr. Martens Size Chart (orders placed in UK sizes):.