Every pair of Birkenstocks is made from the highest quality materials. EVA Upper / EVA EVA - Ethyl Vinyl Acetate is a non-toxic synthetic compound. Creates lightweight and flexible footwear that is shock absorbent. Also resistant to water, oil, and grease. It can shrink at high temperatures. Made from Ethylene-vinyl acetate, this footbed is lightweight and flexible and still offers contours and arch support while being completely waterproof. The Gizeh The fine construction of the Gizeh thong is specifically developed for the deep footbed, and corresponds perfectly to the anatomy of the foot. The Birkenstock thong styles guarantee a perfect fit and naturally surrounds the toes and guides them back to their natural position which are often constricted by formal dress shoes.
