WalletGuard shielding blocks the transmission of RFID (radio frequency identification) waves, which many credit card and emit through a small microchip. RFID enabled credit and debit cards allow your card to be read without swiping the magnetic strip on that back - this technology, while convenient, also means that your card can be read without your knowledge from as far as thirty feet away. We offer WalletGuard to help prevent ID theft and help our customers keep their personal and financial information secure. WalletGuard has been laboratory tested and is FIPS 201 approved.Click here to learn more about this technology.