Want to protect that beautiful foam against any kind of liquid disaster? This impenetrable liner will keep your bed completely safe from spills, weather damage, and accidents. Recommended for puppies & senior dogs with bladder issues. * 100% Waterproof. No liquid or moisture will penetrate this liner, not even the worst accidents * Goes under the bed cover. * Each batch is stress tested under extreme conditions. Guaranteed to keep your foam like new. Make sure to buy the same size liner as your bed!