Hook-backed roll-top Faraday bag for secure attachment to Fade bags; Blocks RFID waves, Wifi, Bluetooth, and cellular signals when properly sealed; Ideal for protecting passport information chips, credit cards, key fobs, and other RFID-enabled devices; Allows your phone to be completely disconnected for privacy; Theorized to protect electronics from EMP attacks or solar flares; Laser-cut molle Velcro front for attaching compatible pouches; Recommended to turn off phone or set to airplane mode to conserve battery life