The Brain Coat- RF shielding for your mind is a silver coated nylon skull cap with ear flaps. It is a lightweight cap that breathes nicely. It is very comfortable to wear it round your ear while sleeping. It is also very thin making you able to wear it under conventional hats. You can also tuck ear plugs under it and can get an unaffected sound quality. The Brain Coat provides your brain a quiet place without any interference in your mental processes.