Or to give more than a second's through to someone wearing a backpack, beyond "oh hey they have a backpack". For one, if you're carrying enough crap isn't a ba

Or to give more than a second's through to someone wearing a backpack, beyond "oh hey they have a backpack". For one, if you're carrying enough crap isn't a backpack more ergonomic (assuming you wear both straps and aren't one-strapping it like the cool guy you are)