The unique design of the Guardian EDC Concealed Carry Laptop Backpack combines the versatility of a modular pack with the internal features of a daily carry CCW pack, complete with a dedicated concealed carry compartment, internal holster, and optional backpack armor panel. Hydration compatible to 3L, and a reservoir can be added to your order using the option above. Ballistic Insert (Optional)This Backpack Armor Insert adds level IIIA protection to many of our elite backpacks and hydration packs. Place these ballistic panels in any appropriately sized backpack, computer bag, or case for a lightweight up-armor solution. Soft, flexible construction allows the ballistic panel to be inserted into bags and packs with sufficient capacity Certified Threat Level (NIJ STD-0101.06) Type IIIA, NIJ Office of Justice Programs Listed Model - 3316 (Why is this important?) Measures 10"W x 15"H 3/8" thick Weighs 1.5 lbs. Ballistic Performance Warranty Period: five (5) years Made in the USA