Balear Birkis Balear Like little stars, glittery gems add sparkle to this simple one strap sandal. Easy care Birko-Flor upper has a buckle adjustment and the anatomic cork footbed provides good arch support and a deep heel cup for stability. Menorca Birkis Menorca One strap is all you need to keep this spunky sandal on yet keep your feet cool in warm weather. You'll get great arch support from the anatomic cork footbed and the deep heel cup keeps you stable while walking.