- The BIRKENSTOCK Boston clog is a veritable classic that can easily be worn all year round. With its additional foam layer, the soft footbed offers extra comfort and pampers feet – all day long. The nature-inspired design is evident from the soft suede upper, which hugs the foot like second skin. - Original BIRKENSTOCK soft footbed; anatomically shaped - Upper: suede - Footbed lining: suede - Sole: EVA - Details: one strap with an individually adjustable metal pin buckle; soft footbed - Made in Germany