Built for a cooler than the average IT guy, the ACE solves for messenger and backpack at the same time. Respect. Backpack straps easily untuck for 17" plus extra batteries days, but on iPad only days, it carries naturally as a messenger. Its TSA-friendly design allows easy access to your machines and its front zip pockets help you always find your phone and its ventilated back panel keeps you cool so you can do your tech thing.