I’m introducing a new Rucksack this winter. It’s 40 cm deep x 43 cm wide, so easily will take a laptop and/or A4 books, it has a zip compartment inside and a zip top, so very secure. The handle can be unzipped to make it two so it can be worn on your back or when zipped up just over one shoulder, as shown. They are £160.00 a good halfway house between a hand bag and a travel bag and definitely go hand luggage!
40cm deep x 43cm wide