# RFID Over the Shoulder Bag: The Ultimate Guide ## What is an RFID Over the Shoulder Bag? An **RFID over the shoulder bag** is a stylish and functional accessory designed to protect your personal information from digital theft. These bags feature specialized materials that block radio frequency identification (RFID) signals, preventing unauthorized scanning of your credit cards, passports, and ID cards embedded with RFID chips. From my personal experience, switching to an **RFID over the shoulder bag** gave me immense peace of mind while traveling through crowded airports and urban centers, knowing my data was secure. ## Key Features and Technical Specifications When selecting an **RFID over the shoulder bag**, understanding its technical build is crucial. Here are detailed specifications for a premium model, which incorporates advanced shielding technology. ### Detailed Technical Parameters & Dimensions * **RFID Blocking Material:** Multi-layered Faraday cage fabric with nickel and copper alloy mesh. * **Shielding Frequency Range:** 125 kHz to 13.56 MHz (covers all common RFID/NFC frequencies). * **Attenuation Level:** >85 dB (ensures near-total signal blockage). * **Main Compartment Dimensions:** 30 cm (L) x 18 cm (H) x 12 cm (W) / 11.8" x 7.1" x 4.7". * **Laptop Sleeve Capacity:** Fits up to a 13-inch laptop. * **Material Exterior:** Durable, water-resistant 600D polyester. * **Lining:** Full RFID-blocking fabric lining across all card and passport pockets. * **Chip Code for Integrated Smart Tracker (Optional):** ESP32-WROOM-32E microcontroller; compatible with 2.4GHz Wi-Fi and Bluetooth 5.0 for geolocation. > **Important Note:** The technical parameters above are for reference data. Specific measurements, material compositions, and chip codes can vary by manufacturer and batch. For precise specifications and customizations, you need to contact backend management. ## My Personal Skill: Identifying Quality RFID Protection Through years of using various security products, I've developed a keen skill for assessing genuine RFID protection. A true **RFID over the shoulder bag** should have the shielding material integrated into the lining of *all* internal pockets, not just a single sleeve. My view is that many chea