Details: Apollo Bio-Neck Seal The patented Bio-Seal is extremely pliable and molds itself to seals and skin equally well. This awesome product can reduce and in most cases eliminate water leakage in the neck area while allowing a more comfortable fit. The seal does not contain latex which helps those who are allergic or prone to neck rash. Not only divers, but surfers and other watersport enthusiasts will also find this a useful addition to their equipment. While the Bio-Seal was originally designed for use for neoprene seals, it will also make a latex type seal more comfortable and less restrictive. This product does contain oils which can cause early wear in latex type seals. Cleaning the neck seal of your suit thoroughly after each use can help delay this effect. Each seal includes a dry storage container.