This bag is the Balenciaga Souvenir XS Belt Bag with the signature diagonal logo canvas and chain charm detail. Based on the style and material combination (logo-printed canvas, brown leather trim, and BB charm chain), this bag is from around the 2018–2019 Balenciaga collection.
This specific “Souvenir” style was:
• First introduced under Demna Gvasalia for Balenciaga around Fall/Winter 2018
• Continued in different versions until around early 2020
• Now discontinued in newer collections, making it more collectible