Birkenstock Arizona Soft Footbed Oiled Leather Sandals Women’s Size 39 Color: Iron Oiled Lots of life left! No flaws, just darkened footbeds. Birkenstock® Arizona Soft Footbed Oiled Leather Sandals deliver the comfort you love, in an iconic 2-strap style. These Birkenstock leather sandals are made with oiled leather that softens and becomes more even beautiful with wear.