A very large piece (but not that big) to add to you next trip or an every day handbag with the function abilities to carry your work load A4 files and personal PC or your Training Gym gears used before the office?
One comfortable adjustable and removable shoulder strap with a gripping pad all leather.
2 inside Mobile phone pockets or sunnies, Boarding pass and passport ready for your trip in the inside zipped compartment.
you can set your own padlock too secure the zip closed.
Metal 5 studs under the bag to protect it from wetness or scratches.
Of course any required none standard compartments or others... I could design for you to compliment your purchase at a sensible extra fee (s).