Made Of 300D Polyester With 210D Polyester Lining. Inside Clear ID Window, 3 Card Slots And Large Pocket For Cash Or Receipts. Place Your Credit Cards In Wallet And Close To Prevent Cyber Hackers From Stealing Your Identity. Prevents Data Transfer Between The Wallet 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.