- BIRKENSTOCK. 1017142. MARTON OILED LEATHER. ROAST. The BIRKENSTOCK Marton is a moccasin-style lace-up boot that"s instantly recognizable as an authentic BIRKENSTOCK original thanks to its exposed cork footbed. The striking stitching in combination with the subtle lacing adds to the overall design. The upper is made from extra thick, oiled nubuck leather with an open-selvage finish.