Birkenstock Boston Wire Buckle combines a supple leather upper with an adjustable buckle and contoured cork footbed for supportive, day-long wear. Product image is indicative Key attributes: Black | Leather | Supportive footbed | Shock-absorbing EVA outsole | Adjustable buckle strap | Slip-on | Contoured cork footbed | Round toe | Mule silhouette | Antiqued-effect metal buckle | Composition & care: Upper: 100% leather | Footbed: cork-latex | Outsole: EVA | Wipe clean with a damp cloth; avoid soaking; dry away from direct heat.