Get these folks... You mean "Ventracles" — yes, Ventracles makes eyewear with an RFID-blocking vent. Short summary: - Product: Ventracles RFID-blocking eyewear (some models include a small metalized vent/insert in the frame that attenuates RFID/NFC signals). - Purpose: Prevents unwanted RFID/NFC reads of contactless cards or tags near the face (e.g., in a pocket, wallet, or glasses-mounted card). - How it works: Metalized insert/mesh in the vent creates a Faraday-like barrier that reduces signal strength at common RFID/NFC frequencies (13.56 MHz and nearby). - Where to get: Ventracles sells through their site and select retailers. They work and its not as conspicious as wearing a guy fawkes mask.