Full-grain leather exterior RFID blocking anti-theft interior 4 main card slots + 2 hidden slots (6 total) Durable nylon stitching Lifetime Warranty Simple and complex, good-looking and rugged. The messenger wallet features a book-like design with 4 main card slots, folded-cash sleeves, and two hidden pockets for the "messages you keep private" or something less-cool like your ID.