best 30 litre laptop backpack Ponhog Rolling Backpack, 30L Travel with Wheels, 15.6 Inch Roller Carry on Luggage with USB Charging Port, Flight Approved Personal Item Wheeled Suitcase for Men Women Adults, Black with a large internal Anti-Theft Backpacks – tagged gallery Color:Black(S L) - 2pcs

best 30 litre laptop backpack Ponhog Rolling Backpack, 30L Travel with Wheels, 15.6 Inch Roller Carry on Luggage with USB Charging Port, Flight Approved Personal Item Wheeled Suitcase for Men Women Adults, Black with a large internal Anti-Theft Backpacks – tagged gallery Color:Black(S L) - 2pcs

Anti-Theft Backpacks – tagged "slash-proof-straps" – Pacsafe – Official North America Store

In general, women tend to have longer legs and a shorter torso than men, so for a woman who is 165 cm, an S-sized backpack might fit, whereas for a man of the same height, M is usually more appropriate

gallery

Color:Black(S L) - 2pcs

Functionality ties everything together

with a large internal organization pocket for essentials