Birkenstock Florida Fresh Vegan Birko-Flor The popular BIRKENSTOCK Florida is now vegan. With three adjustable straps and colorful, geometric print, this is the perfect spring sandal. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor®. Anatomically shaped cork-latex footbed Upper: Birko-Flor® Footbed lining: microfiber Sole: EVA Details: three straps, each with an individually adjustable metal pin buckle; vegan