Happy with this product. Have owned previous versions of Michael Kors iPhone wallets before, but smaller versions for older phones. I finally decided to purchase a larger, updated version to hold my new iPhone X. After checking MichaelKors.com, I decided to check out Amazon for a cheaper prize and came upon this.
After receiving the wallet, I had checked some additional reviews that made me second guess the authenticity. So I did some research online and asked around. Now I'm no connoisseur at telling if items are authentic or not, but the quality of the product seems there and here's a few short reasons why: (1) Straight stitching (2) Signature on the zipper & clip closures (3) Inside tag with country of origin, manufacturing date, QR code, style number (4) Zipper is YKK branded zipper (5) Genuine hardware that has no signs of pinholes — nice and smooth. (6) Don't recall specifics on the tags, but the item did come with product tags still attached, but no box—just in a bag (7) Overall the material and build seem sturdy and well made.
The one thing that threw me off was the printed logo on the inner part of the wallet some other review brought up. I saw on the Michael Kors site that they use this at times on their products and also noted they switch up their lining too. This wallet could also differ a bit from what is on their site currently as it could be an outlet item, which is why it is cheaper. Overall, I've come to the conclusion that it is authentic, and if it isn't—whelp they fooled me!
Also, I do agree with other users that the card inserts are very tight, so I ended up just putting my cards in the zippered compartment since I don't really carry change or cash. Perhaps over time, it will loosen up. I can confirm it does fit the iPhone X with and without a bumper. I cannot attest to larger cases, but the one I purchased off amazon fits. An additional note: I ordered the black wallet (yes it is gold, although it looks like silver in the product photos) through Watchsavings which had a good store rating.