One look at the Flo Backpack designed by Ivan Huber is enough to make any self-respecting adult into their alter ego superhero of choice. The Flo backpack reminds me of a certain mutant turtle ninja half-shell which had gained immense popularity in the 90's. Apart from making the owner look super cool the Flo backpack seems to be more useful and modular than most fancy looking backpacks.
Made out of rigid foam, it is available in three configurations - Urban Day Pack, The Weekender or the 5 Day Trekker. You can choose one of the designs and snap it quickly and securely onto the Flo frame. The frame is made out of lightweight molded plastic and comes with large air channels that are capable of maintaining breathability and a flexible core for unrestricted mobility. Hopefully it has great compartments inside to drop in a iPod or a PSP.