Most passports, credit cards, and ID cards contain a RFID micro-chip that contains all your personal, sensitive information. This information can be accessed from up to 10' away with the help of an RFID reader. The RFIDsafe blocking material prevents your data from falling into the wrong hands by blocking out virtually all transmissions between 10 MHz to 3 GHz. It covers the radio frequency used in e-passports, credit cards / smart cards, and key cards. The lightweight and hard-to-cut webbing and straps made with Dyneema attach to the wallet to help prevent thieves from running off with it.