The BIRKENSTOCK Boston model is a true classic that can be worn comfortably all year round. Thanks to its refined design that can be individually adapted, the Boston has long since entered legend. This clog, which once worn, recalls the lightness of cork sandals, is made of particularly lightweight and highly flexible EVA plastic. The premium EVA plastic, odorless and free of harmful substances, embodies many positive characteristics: it is very lightweight, extremely elastic, cushioning, water-resistant, and skin-friendly.