Features 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 the Z welt-stitch and heat-sealing process, makes it unique to Dr Martens.