These clogs are a great compromise between a sandal and a pair of mules! BIRKENSTOCK has designed the Tokio As. The brand has paid lots of attention to detail with its Nubuck leather upper and fashionable blue colour! From Nubuck leather on the upper level and a Unlined lining to which is added a Suede insole.pour un rendu admirable. The brand has opted for a Suede insole and a Unlined lining. Say goodbye to the country look: with these features, this pair is as stylish as ever!