Birkenstock Boston Shearling Suede Leather Clogs Size 39 / Women’s 8 The Boston clog, made cozy for the colder months. Classic suede lends a velvety feel that continues on the inside. The style is fully lined in genuine shearling, right down to the original contoured footbed. A soft, supportive landing every time. - Anatomically formed cork and latex footbed - Classic suede upper - Genuine shearling footbed lining - Flexible EVA sole - Adjustable strap with metal pin buckle