Step into comfort in supreme style with the Boston EVA byBirkenstock. The perfect companion for a spring-summer day out yet built to be worn all year round, theBirkenstockBoston Eva is made from the ultra-lightweight and highly flexible synthetic material EVA and features ahighly elastic, shock-absorbent, waterproof, and skin-friendly construction. Birkenstock Boston Eva -Anatomically shaped BIRKENSTOCK footbed made from EVA - Upper/lining/sole: a single piece of EVA - Details: waterproof, washable, ultra lightweight - "Made in Germany".