This hermes birkin bag most expensiveis an authentic Chanel matrasse with a silver chain strap. The matrasse is made of high-quality materials and features a black leather and metal handle/strap. The interior is lined with black fabric and has inner pockets for storage. The matrasse is medium-sized and has a black exterior color with silver hardware. There is a little wear on the edges. Please see the photographs. Bag is not returnable, I am happy to answer any questions. Please reach out. I feel it’s nothing to be concerned, the bag is beautiful. It is part of the Chanel Caviar product line and is perfect for women who want a stylish and functional accessory.