The classic thong from Birkenstock; the Gizeh, in versatile and practical waterproof EVA. It is ultra lightweight, highly elasticated, shock-absorbent, waterproof, skin-friendly - and offers the comfort you have come to expect from Birkenstock. It is the perfect sandal for the pool or beach. Features EVA one piece moulded construction - a waterproof and lightweight synthetic material. Contoured EVA footbed features moderate arch support Lightweight EVA sole for cushioning and shock absorption Adjustable buckled strap Please avoid leaving these in direct sunlight or extreme heat as EVA can shrink.