Faraday Dry Bag Backpack is designed for travel and storage of laptops, tablets, radios and more. This backpack will keep your gear dry and secure with its watertight seal and signal blocking design. Triple layers of CYBER NC (Nickel/Copper) line the interior, providing EMP protection and RF/EMF shielding. Backpack measures 16” x 11” x 6”. Also included is the 3-piece Small NX3 Kit, which includes: 1  Phone Bag, 1 Tablet Bag & 1 Laptop Bag. The NX3 bag also has triple layers of CYBER NC fabric and is tested and proven to be effective with 85-90 dB attenuation. It is a favorite among both law enforcement for evidence security and retail customers for personal security.