The Big Three - Backpack

Of the Big Three gear decisions the backpack is perhaps the most personal choice. It really has to fit, and feel right, on your body. My choices are unlikely to work for you, and given I have two choices this will just make it that much more confusing if you try and copy me. I still think it worth writing about packs, if only to share some of the decisions and choices you get to make when choosing your own.