A Badge case is what all Pokémon Trainers use to keep their badges that they have earned. There are eight slots for eight badges. They make each one different for each region. For Ash Ketchum, as the years go by, his gym case has gotten more elaborate. When he was in Kanto and Orange Islands, his badges were kept on a sheet on cloth, but in Unova the Badge case is cushioned and fitted for each badge.