Delsey have invented a new unique zip system that prevents your zippered case being broken into. Here is the blurb taken from Desley's website:

Each and every day, bags are forced open and their valuable contents stolen - or worse, illegal items put in - because their zip is their weak point. For a casual thief, it's the easiest point of entry - even when your luggage locked. 

For the casual thief, the zip is the easy way in, the weak point on a safely locked bag. The zip on your luggage can be forced open in less than two seconds by a thief armed with nothing more than a pen while your back is turned, while it's in transit, while it's separated from you, turning a journey into a nightmare.  But, until now, there's been no way to prevent it.

ZIP SECURI TECH is a unique, new way to make the thief's life more difficult and your journey more trouble-free.  It's a light and easy to use innovation from DELSEY, the luggage expert, which solves a real problem for any traveller by making the zip tough to force open.

This exclusive innovation also removes the risk of your bag breaking when heavy loaded or while you're on the go.

Make your journey easier and the crook's life more difficult.  Always zip up with ZIP SECURI TECH .

Delsey Luggage is available in Australia at The Luggage Professionals