The hidden zippered pocket in this travel blanket is RFID Shielded to prevent identity thieves from stealing information. T-shirt material RFID BLOCKING SECURITY: Equipped with advanced RFID SECURE Technology, a unique composite, engineered specifically to block 13.56 MHz or higher RFID signals and protect the valuable information stored on RFID chips from unauthorized scans. Soft, light and comfortable T-shirt material, perfect for travel. Light and folds into a tiny layer.