Cabin Max Metz Extra Backpack Flight Approved Carryon Bag - Chest Straps Designed to fit the maximum hand luggage size permitted by IATA, this massive 44l capacity with dimensions of 55x40x20cm makes it possible to fly without checking your luggage in to the hold 3 zipped main compartments and 2 zipped internal compartments. Shower resistant 600D polyester material which is a high strength composite polyester material with a padded back The adjustable shoulder, side compression and internal compression packing straps ensure the backpack is not only functional and diverse. NEW adjustable waist and additional chest straps for added carrying comfort