Balenciaga New Product Release: Balenciaga Bag Charms Keychain. Balenciaga Keychain, the latest bag charm with a higher-end style, features a design inspired by celebrity favorites. This classic collection keychain series showcases a unique collaborative design concept.Details include a vintage finish that sets it apart from the glossy versions available on the market. This item is consistently popular and best-selling within Balenciaga, making it an excellent match for trendy backpacks.