The effective cushioning made from High-Density Foam (HDF) protects the notebook safely inside the case & the notebook strap keeps it in place. In addition to the notebook Alu Briefcase also has room for power supply unit, replacement battery or other items int the cable bag that comes with the bag. Additional mobile accessories can be stored in the workstation & documents can be placed in the document compartment in the case lid. The removable shoulder strap also provides for comfortable transport.