This RFID protective passport holder is a wallet made of soft, black calf-leather, which is made for carring not only a passport but also 2 cheque cards. Since modern passports has an embedded contactless chip for machine reading, they can be contacted at a distance by unauthorised people. For additional protection your ID-photo and fingerprints use this protective passport wallet.
This passport security case is protecting the embedded contactless chip from contacted at a distance due to its design as Faraday cage, so it can not be contacted wireless. So its a noble security tool, it protects your passport physically but your ID-photo and your fingerprints logically.
But not only passports are protected but also your contactless credit cards, tickets or vending machine cards. Since there are successfull attacks on simple contactless cards like Mifare Classic or Legic Prime, there are attacks on the payment application functions on such cards. Keep your cards in this holder (or in CardCare Pocket
) you are safe for sure.