Birkenstock Boston Clog Big Buckle Mud Green Birkenstock boston Birkenstock Boston Big Buckle Nubuck Black 1016995 US Birkenstock Arizona Big Buckle nubuck leather sandals with double BIRKENSTOCK Boston Big Buckle Nubuck Leather Clog Red Arizona Big Buckle Nubuck Leather Sandcastle BIRKENSTOCK Boston Big Buckle Nubuck Leather Sandcastle BIRKENSTOCK. Bigger buckle, bolder Boston. BIRKENSTOCK expands the wildly popular Big Buckle collection to welcome their most iconic clogthe Boston. An oversized, gleaming buckle adds the perfect statement piece to the classically laid back look. On a contoured footbed that'll feel uniquely yours wherever you wear it. Contoured cork latex footbed creates custom support with wear Premium nubuck leather upper Suede footbed lining helps keep you comfortable EVA sole is flexible & lightweight Adjustable strap with oversized metal pin buckle Narrow Medium width