The Tokio clog from BIRKENSTOCK is a variation of the iconic Boston. It features a heel strap and can be worn in any season. Its upper is made from particularly soft suede leather that hugs the foot like a second skin.Anatomical footbed in cork and latexUpper: suede leatherInsole: suede leatherOutsole: EVADetails: adjustable metal buckle closuresâMade in Germanyâ