An ultra-secure bag for extra peace of mind ! An integrated TSA-accepted combination lock enables to secure your luggage using your own 3-digit code. Plus the bag is equipped with DELSEY's latest patented SECURITECH locking system. The zip is 3 times more resistant than a conventional one; the pullers and sliders are co-molded so they cannot be taken apart and are fully enclosed; and a sliding metal cover secures the pullers making them unreachable and securing the closure of the case, even if the 3-digit code has not been set up yet.