Dr. Martens become more comfortable as they age. The Rugged Collection uses supple leathers, classic shapes and agricultural-inspired styles, given a distressed and worn-in look. Folded down, the exposed tartan offers an alternative look and subtle color combination. 10 Eye Boot.Black Polished Wyoming leather. Grey and black tartan lining. Dr. Martens air-cushioned sole, oil and fat-resistant, good abrasion and slip resistance. Goodyear-welted product, upper and sole are heat-sealed and sewn together.