BIRKENSTOCK: The Honolulu is a sporty thong sandal with a hexagon pattern. It’s perfect for anyone who is looking in particular for function and comfort. Modeled on the cork sandal, this sandal is made from especially light and flexible EVA. This high-quality, odor-neutral synthetic material which has been tested for harmful substances is shock-absorbent, waterproof, and skin-friendly. It’s therefore perfect for wearing at the beach, in the garden, or in wellness and spa areas.