Nappa Leather RFID Blocking Passport Currency Wallet. RFID (RADIO FREQUENCY IDENTIFICATION) tags are now being placed in U.S. Passports, credit cards and other forms of identification. Protect your information from hackers by using a Royce RFID blocking Passport Wallet. This first-class Top Grain Nappa Leather passport wallet offers you a safe place for your passport, 3 credit/business card pockets, ID window for security checks, a full pocket for foreign currency, half depth pocket for U.S. currency and two additional pockets for travel papers. Dimensions: 5 1/2" x 4" x 1/2".