Birkenstock Boston features an anatomical cork-latex footbed and a single adjustable strap for customizable, all-day comfort. Product image is indicative. Key attributes: Black | Nubuck leather | Anatomical cork-latex footbed | Lightweight EVA sole | Adjustable strap with metal pin buckle | Individual fit adjustment | Single-strap clog design | Seamless edge construction | Thick oiled nubuck upper | Composition & care: Upper: Nubuck leather | Footbed: Cork and latex | Insole top layer: Suede | Outsole: EVA | Wipe clean with a damp cloth. Use suitable nubuck/leather cleaner and brush for maintenance. Do not machine wash.