Is the BANGE travel backpack worth it?

How the BANGE anti theft backpack's combination lock actually works

Here's the bit worth understanding. Most anti theft backpacks just add extra zippers and call it a day, but the trick with a lock like this is that it doesn't secure the whole bag, it secures the one weak point: the two zipper pulls where someone could work a compartment open in a crowd. The compact combination lock clips those pulls together at a single point you set yourself, so opening the main compartment without your code means someone has to work at it, not just tug it open in passing. That's what turns a business backpack into a deterrent instead of a target. Inside, the single compartment holds a padded sleeve for a 15 inch laptop, thickened enough to absorb the knock of being set down on concrete, and the whole shell is stitched from water-resistant polyester with zippers that shed a sudden downpour instead of soaking it up. The USB charging port with its built-in internal cable is the quieter feature: clip a power bank inside once, at home, and after that, charging your phone on a train platform doesn't mean opening the bag at all.