Gym Badges
Introduction
Gym Badges track your activities with different Gyms around the world. Each Gym has a different Badge. Players can acquire and level up a specific Badge by battling at that Gym, giving Berries to Pokemon at that Gym and spinning that Gym's Photo Disc. Better Badge awards you with better reward at that Gym.
Types of Badges
Official Announcement
Gym Badges: Now you’ll be able to earn Gym Badges when interacting with the many Gyms around the world. Gym Badges serve as mementos of your Pokémon GO adventures and reflect your contribution to a Gym’s success.
You’ll be able to level up your Badges by battling, giving Berries to the Pokémon in the Gym and spinning the Gym’s Photo Disc. You can earn the opportunity to receive bonus items and increased rewards from Gyms by raising the level of your Gym Badge.