Thanks to the unique opening principle, this minimalistic backpack functions like a duffle and is protected against unwanted access from the outside. The proven TIZIP zipper is additionally secured by two practical magnets. Inside, four inner pockets and a compression strap ensure that your contents are optimally divided and secured. Anything you want quick access to when on the go, like your passport, boarding pass or a water bottle, can be stowed easily in the outer mesh or zippered pocket. Of course, the compact volume and dimensions makes the Atrack Metrosphere perfectly suitable as carry-on luggage on the plane.A pannier such as the Back-Roller or Bike-Packer can either be filled with a Toiletry Bag and one Packing Cube L OR a Toiletry Bag and two Packing Cubes S. The Packing Cube Bundle does not fit completely into one pannier.Material: PS33Volume: 40l & 60lWeight: 770gDimensions: 53x22x31cm & 53x22x32cm