Theives are getting smart, but a Pacsafe RFIDsafe RFID Blocking Bifold Wallet is even smarter. This slender bifold wallet features three interior card slots, an ID window pocket, and a quick access pocket for transit cards. Internal RFID blocking materials protect your cards from surreptitious scans. The RFIDSafe Bifold Wallet consists of a 450-denier polyester ripstop outer shell that's water-resistant up to 1,000 millimeters, plus a 75-denier polyester interior lining. These materials come from recycled PET: Every wallet keeps two plastic bottles out of our planet's oceans.