Arizona Essentials EVA by Birkenstock. Black, size 40. The legendary two-strap design. Modeled on the cork original, this sandal is made from ultra lightweight and highly flexible EVA. These sandals are shock absorbing, waterproof, and skin-friendly. Wear them at the beach, in the garden, or around the gym and after workouts. Anatomically shaped footbed made from EVA. Upper/lining/sole: one piece molded EVA. Two straps, each with an individually adjustable pin buckle; waterproof, washable, ultra lightweight. Made in Germany. Good condition, tread wear.