For the past 6 months I have been using the MindShift rotation180° Professional as my main day hiking pack. Prior to this I was using an f-stop Loka. Both of these packs have similar designs of accessing your gear from the back side of the pack. MindShift took this one step further and added a belt pack that you can access your gear from without taking off your pack. MindShift was launched by Think Tank Photo last year.