http://swissarmybackpacks.org/hiking-backpacks/

When considering purchasing the best hiking backpacks, it is important to understand that there are two certain types to choose from. The first being the external frame backpacks. These are designed so that you can attach your tent or walking poles, to the external part of the backpack. The second type of best hiking backpacks, is the internal framed backpack. These are slightly smaller and are designed to be more user friendly, as the weight will be much more centred on your back.