Birkenstock Unisex Arizona Sandal, Birkibuc,37 Medium / Narrow Width They are either Stone, Khaki or Olive green. I cannot be 100% sure which color they are! These babies have been LOVED. I've had to move to the Wide width over time and they no longer fit me well. They are Fully broken in, as seen in the photos. Leather cork sole Comfort sandals with adjustable buckles Medium width Birko-Flor upper has a smooth leather-like finish and is lined with a soft fabric for comfort Anatomically correct cork footbed helps foot health