This sandal will take you from brunch to dinner and everything in between.The often imitated, never duplicated, category-defining, two-strap wonder from Birkenstock. A comfort legend and a fashion staple. With adjustable straps and a magical cork footbed that conforms to the shape of your foot, a truly custom fit is as effortless as the classic design. Birko-Flor - durable, synthetic upper material with a leather-like finish and soft backing.