Description :
Large Water-Proof Faraday Backpack for Laptops, Tablets, and Mid-Size Electronics ~ Tracking/Hacking Defense 
Water-proof roll-top design with welded seams and waterproof shell sewn between outer 1680 Ballisitic Nylon exterior and Diamond Form faraday interior
Defends against electronic hacking and tracking while traveling by shielding against: Radio frequency (RF) signals such as cell signal, WiFi, and Bluetooth, GPS satellite broadcast, Vehicle smart key fob transmission, Electromagnetic pulse (EMP), and Electromagnetic interference
The interior features large main compartment constructed using Xtreme Sight Line Diamond Form faraday fabric to protect from location tracking, hacking, and damage due to external EMF by effectively diminishing EMF and RF signals such as WiFi, cell phone signal (including 5G), GPS, and Bluetooth with an average attenuation of 80dB - 100dB shielding rating from 10Mhz to 5Ghz
Two exterior pockets help organize other personal and tech essentials
Overall dimensions with roll-top open: 27" L by 19.5" W by 4.5" H - Interior dimensions in shielded position (roll-top closed): 21" tall by 19" wide. This bag meets the TSA guidelines for a personal item and is still able to fit most laptops with screen sizes up to 17"