First of all, pockets! Why so many? They are part of the "survival" architecture needed to carry the must-have devices of today's world.
Interior:Water repellent phone pocket
Water repellent tablet/mobile device pocket
Zip-closure deep document pocket (deep doc poc) for cash, wallet, passport, boarding pass, charging cords, a great bourbon(!), legal papers, the little black book/poker dates…very secure and private