From Manufacturer
The black Coversafe V150 RFID Blocking Holster from Pacsafe features two zippered compartments with an interior organizer for items such as your money, passport, tickets, and bank cards with a soft-touch backing. An adjustable soft-touch nylon waist strap keeps your essentials safe from identity thieves.
RFIDsafe blocking pocket and materials prevents identity theft of your personal information by blocking out virtually all transmissions between 10 MHz to 3 GHz, which covers the radio frequency used in e-passports, credit cards, and key cards