Mayari Black Patent thong sandals in a narrow fit by Birkenstock. The Mayari Birkenstock is a classic design with an effortless criss-cross forming a single loop around the toe. This elegant and functional sandal also has a supportive footbed and adjustability. The iconic Birkenstock contoured cork footbed conforms to the shape of your foot and features arch support, a deep heel cup and roomy toe box. Made with Birkenstocks patented material 'Birko Flor'.