The Yao is retiring, get it while you can! Bought these a couple summers ago and the strap style just isn’t for me. Worn very lightly, footbed had not yet molded to my feet. Soles like new. Not the real leather, synthetic birk upper. An asymmetric eye-catcher! The BIRKENSTOCK Yao is popular with people who like unusual fashion and is sure to turn heads. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor®. Anatomically shaped cork-latex footbed Upper: Birko-Flor® Footbed lining: suede Sole: EVA Details: two straps, each with an individually adjustable metal tongue buckle “Made in Germany”