RFID (RADIO FREQUENCY IDENTIFICATION) tags are now being placed in US Passports, credit cards and other forms of identification. Protect your information from hackers by using a Royce RFID Blocking Wallet. Inside section of this Genuine Leather wallet features a built in shield that blocks radio frequencies embedded in your Credit Cards and IDs. Very practical piece with an exterior window made in Genuine Leather. Two zippered compartments; one to keep your change with detachable key fob and one to keep your currency as well as 3 credit/business card pockets. Slim enough to fit almost anywhere (outside window has no RFID protection).