Protects de most sensitive areas of the neck from chafing and injuries caused by wetsuit use in water sports. Manufactured with elastic material and vaseline to create a protective layer. It separates the movement of the neck from the wetsuit. Designed with a flap-shaped extension to extend protection to the wetsuit zip fastening area. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.