Purchased from the official Louis Vuitton client service in Japan, this is guaranteed authentic. As a measure against the proliferation of counterfeit goods, Louis Vuitton has discontinued the traditional manufacturing code of letters and four digits, and has been gradually managing products with IC chips since the second half of 2020. By downloading an app like NFCtools on your smartphone and holding it over the product, you can read the serial number from the IC chip inside. I was also able to read the IC chip on this item. This is the Iris Compact from the Mahina line, in the exquisite greige color, Brume, which has a very sophisticated atmosphere. The 2020 SS Brume had a brown interior, but the 2021 SS version of Brume x Rose Mademoiselle has a soft baby pink interior♡. It's a bi-fold wallet with a beautiful contrast with the pink interior. This color sold out quickly. It's a chic nuance color, an elegant color that's hard to find. I think it's a refreshing and elegant color scheme that's perfect for spring. I used it for about six months after purchase. It still has the scent of new leather. (Please refrain from purchasing if you are particular about every detail, as this is a used item.) Please check the photos for stains on the coin case and slight cracks. Please understand that this is a used item. I'm selling it at a low price, so if you were looking for one, please consider it. Color: Gray系 (Gray-based) Accessories: Box Returns are not accepted to prevent switching of items.