How useful! These wheeled luggage travel bags from Numinous feature the latest anti-slash technology along with numinous shield combination lock and TSA approved zip locks. With the innovative shield combination lock, you can securely attach the 40L luggage to a bed or other fixed object. These features all combined provide an overall peace of mind and keep all essentials well contained for use at any part of your journey. Other features include a padded laptop compartment, an anti-puncture zip, compression straps, full length opening and TSA-approved zip locks. Among the best in its range, it also has an adjustable back system, mesh back pockets and a side carry handles.