Verloren in Maastricht: Black Sling/Shoulder Bag (similar to the one in the photo)

On 10 Oct, I lost a black sling/crossbody bag at the Vintage Island secondhand clothing store on Platielstraat 1A in Maastricht, specifically while I was trying on clothes. The bag is sleek, minimalist, and relatively small, measuring approximately 37 cm long, 4.5 cm deep, and 14 cm high with a capacity of 1.3L. Inside the bag were several highly important items. These include my official Dutch Resident Permit Card with my name on it and my red Chinese Passport. It also contained all my essential cards: an ING Bank Card, a China Merchants Bank Credit Card, my University of Maastricht Student Card, my University of Maastricht Sports Card, and a personalized OV Chipkaart for public transport. Additionally, the bag held an Anker Innovations power bank, six keys on a ring, and a pair of Apple Gen 1 earphones.