Tru-Spec Circadian Black Backpack.
The perfect tactical backpack that can double as a daily backpack. It has the features tacticl backpacks need, yet the appearance is one of a daypack. It's covered in exterior universal strapping for adding pouches with multiple built-in zippered compartments and pouches. One of the best features is a hidden pocket in the lower back pad that is perfect for concealing your weapon of choice, documents, or other valuable items. With tons of features you need and want, this is a great choice for a tactical backpack and a great all-around backpack.