The external size of the cabin backpack is 40 x 30 x 20 cm suitable for computers up to 15.6". The weight is approximately 0.60 kg with a volume of 26.5 L. It is suitable for the Ryanair/Wizz Air/Vueling hand luggage size: 40 x 30 x 20 cm Smart organisation & storage: Multiple interior compartments, a special front pocket for business essentials, elastic cross straps and a side bottle holder with elastic mesh for secure storage Travel & tech ready: With Smart Sleeve for attachment to suitcase, laptop and tablet compartment (suitable for laptops up to 15.6") plus additional tablet compartment Compliant with the free cabin dimensions of Ryanair/Wizz Air/Vueling (backpack S/M). Please check with your airline before departure which size and weight restrictions apply in the cabin. We accept no responsibility if an airline applies different cabin size standards Interior and exterior material made from recycled PET bottles using our Recyclex material technology