The BIRKENSTOCK Boston clog is a veritable classic that can easily be worn all year round. Thanks to its two components, the sole promotes stability and comfort. Cushioning midsole made from EVA and a slip-resistant outsole made from genuine rubber. Anatomically shaped cork-latex footbed Upper: natural leather Footbed lining: suede Sole: slip-resistant rubber-EVA sole Details: one strap with an individually adjustable metal pin buckle; dual-component sole made from EVA and rubber