The understated Madrid sandal features a buckled solo strap for a more refined take on the classic Birkenstock. The understated Madrid sandal features a buckled solo strap for a more refined take on the classic Birkenstock. This iconic German brand has become a wardrobe staple, thanks to an incomparable fit, laidback comfort, and a commitment to sustainable sourcing. Throughout the brand's many innovations, attention to craft has always stayed true: Each footbed is designed to adapt to the wearer's unique step, providing support no other shoe can.