The expandable half-moon bag features a bottom design that can be adjusted according to your needs. Once expanded, the bag's size is significantly upgraded, allowing for easier storage of various items. In addition to a dedicated pocket for Airpods, it can hold everything from your phone, keys, and wallet to a water bottle, umbrella, notebook, and windbreaker. The adjustable shoulder strap allows for easy customization based on your outfit, making it perfect for everyday use whether you carry it as a shoulder bag or crossbody.