This is a really great product with an open identification window and it really saves space. My only problem is that it is not suitable for business cards. In the wallet they are a little big and bulge a little and also make it difficult to push on task as they snag on the elastic without the rounded corners. If I put them under the money clip, they fly out when I take the note. It's not the end of the world but I have business/contact cards that I use for promotions and such so it would be nice if the wallet were a millimeter larger on all sides.