Backpacks - Internal vs. External Frame

The information below is from the Swiss Army website.  Of course they want to sell you their pack but they do offer a nice explanation of the options available to the hiker.

Internal or external frame backpacks- When considering purchasing backpacks. There are some differences that you need to know about.

For example, for hiking trips that last 2 days or more. You should look at the internal or  external frame backpacks.

Here I will explain the subtle differences between internal or external frame backpacks.

To read the rest of the post go here.