I will be taking a backpacking trip through SE Asia, South Africa and South America for an extended period of time.
I am taking a 36L backpack, and trying to bring as few things as possible. However, I will be carrying a laptop, DSLR camera and some other electronic gear so that I can work while traveling.
Is a pacsafe, or something else that surrounds your backpack for security reasons, a necessary or useful item that would warrant the extra space and weight in my pack?