Birkenstock Mens Sandals. SKU: 129421 M. Color: Black. Mimics the cork original in ultra lightweight, highly flexible EVA. This high-quality synthetic material is odor-neutral, tested for harmful substances, shock-absorbent, waterproof, and skin-friendly. Ideal for the beach, garden, or wellness areas, it offers a regular fit. <br/><br/><b>Please visit the brand website for sizing information.</b>