Made Of 840D Polyester With 210D Polyester Lining. 3 Front Pockets. Slim Profile, Leather Look. Place Your Credit Cards In Holder To Prevent Cyber Hackers From Stealing Your Identity. Prevents Data Transfer Between The Card Holder And Reader. Works With Any Contactless Chip Card. Cards That Are Swiped Do Not Send RFID Signals And Will Not Be Protected By An RFID Blocker.