Phiten RAKUWA Neck Extreme CROSS Red & White 45cm Necklace Metax Sports Silicone The power of Metax for your neck. Made of skin-friendly silicone, it's resistant to sweat and water, making it ideal for sports. With a stylish design using lines, it's a necklace that also works well in casual settings. Material: Silicone, Plate: Polycarbonate Technology: Metax There are some scratches from use, but thank you for your understanding regarding this used item.