CabinZero bags have been developed so that they will be accepted as carry-on by all the major airlines. They are light - weighing in at approx. 760g. CabinZero bags have lost-and-found tags built in. This ensures your bag is able to be traced back to you in the event it is lost (or even stolen). The system is also linked directly into the airline's own baggage-tracing system. You just need to register the tag online with Okoban.com as soon as you receive the bag. It will then have lifetime protection using this lost-and-found system. Every CabinZero bag comes with a 10-year warranty. If that's not enough, if you go over to the CabinZero Facebook page and like them, they will automatically upgrade your warranty to 25 years. Packing capacity: 44 litres.