Secrid Vintage SlimwalletThe Secrid Vintage SlimWallet, in Grey and Black, is based on the Secrid CardProtector and will help protect your cards against RFID skimming and ensure your privacy remains secure. When RFID cards (Radio Frequency Identification cards that can be skimmed from long distances) are fully inserted into the CardProtector, the wireless communication is blocked and the cards are fully protected. When they are pulled out by 30mm 3cm, the wireless signal is