Pack! Our Convertible Carry On is a great extra bag to pack for those extra items gathered along your travels. It packs in a small pouch, is lightweight and easy to pack in your suitcase. This large carry on has a generous 36-55 has Liters of storage space. The bag two sturdy adjustable straps allowing it to be used as a carry on or as a back pack. The super strong nylon material is water and tear resistant. It's reinforced stitching and zippers are made to last! Avoid overweight charges, simply unfold this bag and use it as a carry on for your excess baggage.